WHAT IS A PHOTOGRAPHER?
A photographer is a person who takes a photograph using a camera. A professional photographer uses photography to make a living. Photographers are often categorized based on the subjects they photograph. Some photographers explore subjects typical of paintings such as landscape, still life, and portraiture. Other photographers specialize in subjects unique to photography, including street photography, documentary photography, fashion photography, wedding photography and commercial photography. Paparazzi are photographers who do candid photography of celebrities. The distinction between artistic photography and photojournalism or other types of photography and the associated techniques does not remove this personal aspect from the work of the great photographers.

WHAT IS PHOTOGRAPHY?

Photography is the process and art of recording pictures by means of capturing light on a light-sensitive medium, such as a film or electronic sensor. Light patterns reflected or emitted from objects expose a sensitive silver halide based chemical or electronic medium during a timed exposure, usually through a photographic lens in a device known as a camera that also stores the resulting information chemically or electronically. Photography has many uses for both business and pleasure. It is often the basis of advertising and in fashion print. Photography can also be viewed as a commercial and artistic endeavor. Lens and mounting of a large-format camera Lens and mounting of a large-format camera A handheld digital camera. A handheld digital camera. The Nikon D1, the first DSLR to truly compete with, and begin to replace, film cameras in the professional photojournalism and sports photography fields. The Nikon D1, the first DSLR to truly compete with, and begin to replace, film cameras in the professional photojournalism and sports photography fields. The word "photography" comes from the French photographie which is based on the Greek (phos) "light" + (graphis) "stylus", "paintbrush" or (graphê) "representation by means of lines" or "drawing", together meaning "drawing with light." Traditionally, the product of photography has been called a photograph, commonly shortened to photo.

Photographic cameras The camera or camera obscura is the image-forming device, and photographic film or a silicon electronic image sensor is the sensing medium. The respective recording medium can be the film itself, or a digital electronic or magnetic memory. Photographers control the camera and lens to "expose" the light recording material (such as film) to the required amount of light to form a "latent image" (on film) or "raw file" (in digital cameras) which, after appropriate processing, is converted to a usable image. Digital cameras replace film with an electronic image sensor based on light-sensitive electronics such as charge-coupled device (CCD) or complementary metal-oxide-semiconductor (CMOS) technology. The resulting digital image is stored electronically, but can be reproduced on paper or film. In all but certain specialized cameras, the process of obtaining a usable exposure must involve the use, manually or automatically, of a few controls to ensure the photograph is clear, sharp and well illuminated. The controls usually include but are not limited to the following:

* Focus of the lens

* Aperture of the lens – adjustment of the iris, measured as f-number, which controls the amount of light passing through the lens. Aperture also has an effect on focus and depth of field, namely, the smaller the opening [aperture], the less light but the greater the depth of field--that is, the greater the range within which objects appear to be sharply focused.

* Shutter speed – adjustment of the speed (often expressed either as fractions of seconds or as an angle, with mechanical shutters) of the shutter to control the amount of time during which the imaging medium is exposed to light for each exposure. Shutter speed may be used to control the amount of light striking the image plane; 'faster' shutter speeds (that is, those of shorter duration) decrease both the amount of light and the amount of image blurring from subject motion or camera motion.

* White balance – on digital cameras, electronic compensation for the color temperature associated with a given set of lighting conditions, ensuring that white light is registered as such on the imaging chip and therefore that the colors in the frame will appear natural. On mechanical, film-based cameras, this function is served by the operator's choice of film stock. In addition to using white balance to register natural coloration of the image, photographers may employ white balance to aesthetic end, for example white balancing to a blue object in order to obtain a warm color temperature.

* Metering – measurement of exposure at a midtone so that highlights and shadows are exposed according to the photographer's wishes. Many modern cameras feature this ability, though it is traditionally accomplished with the use of a separate light metering device. To translate the amount of light into a usable aperture and shutter speed, the meter needs to input the sensitivity of the film or sensor to light. Thus there needs to be a setting for "film speed" or ISO sensitivity.

* ISO speed – traditionally used to "tell the camera" the film speed of the selected film on film cameras, ISO speeds are employed on modern digital cameras as an indication of the system's gain from light to numerical output and to control the automatic exposure system. A correct combination of ISO speed, aperture, and shutter speed leads to an image that is neither too dark nor too light.

* Auto-focus point – on some cameras, the selection of a point in the imaging frame upon which the auto-focus system will attempt to focus. Many Single-lens reflex cameras (SLR) feature multiple auto-focus points in the viewfinder. Many other elements of the imaging device itself may have a pronounced effect on the quality and/or aesthetic effect of a given photograph; among them are:

* Focal length and type of lens (telephoto or "long" lens, macro, wide angle, fisheye, or zoom)

* Filters or scrims placed between the subject and the light recording material, either in front of or behind the lens

* Inherent sensitivity of the medium to light intensity and color/wavelengths.

* The nature of the light recording material, for example its resolution as measured in pixels or grains of silver halide.

Controlling the photographic exposure and rendering
Camera controls are inter-related. The total amount of light reaching the film plane (the "exposure") changes with the duration of exposure, aperture of the lens, and, the effective focal length of the lens (which in variable focal length lenses, can change as the lens is zoomed). Changing any of these controls can alter the exposure. Many cameras may be set to adjust most or all of these controls automatically. This automatic functionality is useful for occasional photographers in many situations. The duration of an exposure is referred to as shutter speed, often even in cameras that don't have a physical shutter, and is typically measured in fractions of a second. Aperture is expressed by an f-number or f-stop (derived from focal ratio), which is proportional to the ratio of the focal length to the diameter of the aperture. If the f-number is decreased by a factor of \sqrt 2, the aperture diameter is increased by the same factor, and its area is increased by a factor of 2. The f-stops that might be found on a typical lens include 2.8, 4, 5.6, 8, 11, 16, 22, 32, where going up "one stop" (using lower f-stop numbers) doubles the amount of light reaching the film, and stopping down one stop halves the amount of light. Exposures can be achieved through various combinations of shutter speed and aperture. For example, f/8 at 8 ms (=1/125th of a second) and f/5.6 at 4 ms (=1/250th of a second) yield the same amount of light. The chosen combination has an impact on the final result. In addition to the subject or camera movement that might vary depending on the shutter speed, the aperture (and focal length of the lens) determine the depth of field, which refers to the range of distances from the lens that will be in focus. For example, using a long lens and a large aperture (f/2.8, for example), a subject's eyes might be in sharp focus, but not the tip of the nose. With a smaller aperture (f/22), or a shorter lens, both the subject's eyes and nose can be in focus. With very small apertures, such as pinholes, a wide range of distance can be brought into focus. Image capture is only part of the image forming process. Regardless of material, some process must be employed to render the latent image captured by the camera into the final photographic work. This process consists of two steps, development, and printing.

During the printing process, modifications can be made to the print by several controls. Many of these controls are similar to controls during image capture, while some are exclusive to the printing process. Most controls have equivalent digital concepts, but some create different effects. For example, dodging and burning controls are different between digital and film processes. Other printing modifications include:

* Chemicals and process used during film development
* Duration of exposure – equivalent to shutter speed
* Printing aperture – equivalent to aperture, but has no effect on depth of field
* Contrast * Dodging – reduces exposure of certain print areas, resulting in lighter areas
* Burning – increases exposure of certain areas, resulting in darker areas
* Paper texture – glossy, matte, etc
* Paper type – resin-coated (RC) or fiber-based (FB)
* Paper size
* Toners – used to add warm to cool tones to black and white

Uses of photography
Photography gained the interest of many scientists and artists from its inception. Scientists have used photography to record and study movements, such as Eadweard Muybridge's study of human and animal locomotion in 1887. Artists are equally interested by these aspects but also try to explore avenues other than the photo-mechanical representation of reality, such as the pictorialist movement. Military, police, and security forces use photography for surveillance, recognition and data storage. Photography is used to preserve memories of favorite times, to capture special moments, to tell stories, to send messages, and as a source of entertainment. Commercial advertising relies heavily on photography and has contributed greatly to its development.

History of photography

Photography is the result of combining several technical discoveries. Long before the first photographs were made, Ibn al-Haytham (Alhazen) (965–1040) invented the camera obscura and pinhole camera,[2] Albertus Magnus (1193–1280) discovered silver nitrate, and Georges Fabricius (1516–1571) discovered silver chloride. Daniel Barbaro described a diaphragm in 1568. Wilhelm Homberg described how light darkened some chemicals (photochemical effect) in 1694. The fiction book Giphantie, by French author Tiphaigne de la Roche, described what can be interpreted as photography. Photography as a usable process goes back to the 1820s with the development of chemical photography. The first permanent photograph was an image produced in 1826 by the French inventor Nicéphore Niépce. However, the picture took eight hours to expose, so he went about trying to find a new process. Working in conjunction with Louis Daguerre, they experimented with silver compounds based on a Johann Heinrich Schultz discovery in 1724 that a silver and chalk mixture darkens when exposed to light. Niépce died in 1833, but Daguerre continued the work, eventually culminating with the development of the daguerreotype in 1837. Eventually, France agreed to pay Daguerre a pension for his formula, in exchange for his promise to announce his discovery to the world as the gift of France, which he did in 1839. Meanwhile, Hercules Florence had already created a very similar process in 1832, naming it Photographie, and William Fox Talbot had earlier discovered another means to fix a silver process image but had kept it secret. After reading about Daguerre's invention, Talbot refined his process so that it might be fast enough to take photographs of people. By 1840, Talbot had invented the calotype process, which creates negative images. John Herschel made many contributions to the new methods. He invented the cyanotype process, now familiar as the "blueprint". He was the first to use the terms "photography", "negative" and "positive". He discovered sodium thiosulphate solution to be a solvent of silver halides in 1819, and informed Talbot and Daguerre of his discovery in 1839 that it could be used to "fix" pictures and make them permanent. He made the first glass negative in late 1839. In March of 1851, Frederick Scott Archer published his findings in "The Chemist" on the wet plate collodion process. This became the most widely used process between 1852 and the late 1880s when the dry plate was introduced. There are three subsets to the Collodion process; the Ambrotype (positive image on glass), the Ferrotype or Tintype (positive image on metal) and the negative which was printed on Albumen or Salt paper. Many advances in photographic glass plates and printing were made in through the nineteenth century. In 1884, George Eastman developed the technology of film to replace photographic plates, leading to the technology used by film cameras today. In 1908 Gabriel Lippmann won the Nobel Laureate in Physics for his method of reproducing colours photographically based on the phenomenon of interference, also known as the Lippmann plate.

Photography types

Black-and-white photography
All photography was originally monochrome, most of these photographs were black-and-white. Even after color film was readily available, black-and-white photography continued to dominate for decades, due to its lower cost and its "classic" photographic look. It is important to note that some monochromatic pictures are not always pure blacks and whites, but also contain other hues depending on the process. The Cyanotype process produces an image of blue and white for example. The albumen process which was used more then 150 years ago had brown tones. Many photographers continue to produce some monochrome images. Some full color digital images are processed using a variety of techniques to create black and whites, and some cameras have even been produced to exclusively shoot monochrome.

Color photography
Color photography was explored beginning in the mid 1800s. Early experiments in color could not fix the photograph and prevent the color from fading. The first permanent color photo was taken in 1861 by the physicist James Clerk Maxwell.

One of the early methods of taking color photos was to use three cameras. Each camera would have a color filter in front of the lens. This technique provides the photographer with the three basic channels required to recreate a color image in a darkroom or processing plant. Russian photographer Sergei Mikhailovich Prokudin-Gorskii developed another technique, with three color plates taken in quick succession. Practical application of the technique was held back by the very limited color response of early film; however, in the early 1900s, following the work of photo-chemists such as H. W. Vogel, emulsions with adequate sensitivity to green and red light at last became available. The first color plate, Autochrome, invented by the French Lumière brothers, reached the market in 1907. It was based on a 'screen-plate' filter made of dyed dots of potato starch, and was the only color film on the market until German Agfa introduced the similar Agfacolor in 1932. In 1935, American Kodak introduced the first modern ('integrated tri-pack') color film, Kodachrome, based on three colored emulsions. This was followed in 1936 by Agfa's Agfacolor Neue. Unlike the Kodachrome tri-pack process, the color couplers in Agfacolor Neue were integral with the emulsion layers, which greatly simplified the film processing. Most modern color films, except Kodachrome, are based on the Agfacolor Neue technology. Instant color film was introduced by Polaroid in 1963. Color photography may form images as a positive transparency, intended for use in a slide projector or as color negatives, intended for use in creating positive color enlargements on specially coated paper. The latter is now the most common form of film (non-digital) color photography owing to the introduction of automated photoprinting equipment.

Full-spectrum, ultraviolet and infrared photography
Ultraviolet and infrared films have been available for many decades and employed in a variety of photographic avenues since the 1960s. New technological trends in digital photography have opened a new direction in full spectrum photography, where careful filtering choices across the ultraviolet, visible and infrared lead to new artistic visions. Modified digital cameras can detect some ultraviolet, all of the visible and much of the near infrared spectrum, as most digital imaging sensors are sensitive from about 350nm to 1000nm. An off-the-shelf digital camera contains an infrared hot mirror filter that blocks most of the infrared and a bit of the ultraviolet that would otherwise be detected by the sensor, narrowing the accepted range from about 400nm to 700nm. Replacing a hot mirror or infrared blocking filter with an infrared pass or a wide spectrally transmitting filter allows the camera to detect the wider spectrum light at greater sensitivity. Without the hot-mirror, the red, green and blue (or cyan, yellow and magenta) colored micro-filters placed over the sensor elements pass varying amounts of ultraviolet (blue window) and infrared (primarily red, and somewhat lesser the green and blue micro-filters). Uses of full spectrum photography are for fine art photography, geology, forensics & law enforcement, and even some claimed use in ghost hunting.

Digital photography
Traditional photography burdened photographers working at remote locations without easy access to processing facilities, and competition from television pressured photographers to deliver images to newspapers with greater speed. Photo journalists at remote locations often carried miniature photo labs and a means of transmitting images through telephone lines. In 1981, Sony unveiled the first consumer camera to use a charge-coupled device for imaging, eliminating the need for film: the Sony Mavica. While the Mavica saved images to disk, the images were displayed on television, and the camera was not fully digital. In 1990, Kodak unveiled the DCS 100, the first commercially available digital camera. Although its high cost precluded uses other than photojournalism and professional photography, commercial digital photography was born. Digital imaging uses an electronic image sensor to record the image as a set of electronic data rather than as chemical changes on film. The primary difference between digital and chemical photography is that chemical photography resists manipulation because it involves film and photographic paper, while digital imaging is a highly manipulative medium. This difference allows for a degree of image post-processing that is comparatively difficult in film-based photography and permits different communicative potentials and applications.

Digital point-and-shoot cameras have become widespread consumer products, outselling film cameras, and including new features such as video and audio recording. Kodak announced in January 2004 that it would no longer sell reloadable 35 mm cameras in western Europe, Canada and the United States after the end of that year. Kodak was at that time a minor player in the reloadable film cameras market. In January 2006, Nikon followed suit and announced that they will stop the production of all but two models of their film cameras: the low-end Nikon FM10, and the high-end Nikon F6. On May 25, 2006, Canon announced they will stop developing new film SLR cameras. According to a survey made by Kodak in 2007, 75 percent of professional photographers say they will continue to use film, even though some embrace digital. According to the U.S. survey results, more than two-thirds (68 percent) of professional photographers prefer the results of film to those of digital for certain applications including:

* film’s superiority in capturing more information on medium and large format films (48 percent);
* creating a traditional photographic look (48 percent);
* capturing shadow and highlighting details (45 percent);
* the wide exposure latitude of film (42 percent); and
* archival storage (38 percent)

Because photography is popularly synonymous with truth ("The camera doesn't lie."), digital imaging has raised many ethical concerns. Many photojournalists have declared they will not crop their pictures, or are forbidden from combining elements of multiple photos to make "illustrations," passing them as real photographs. Many courts will not accept digital images as evidence because of their inherently manipulative nature. Today's technology has made picture editing relatively simple for even the novice photographer. Recent changes of in-camera processing allows digital fingerprinting of RAW photos to verify against tampering of digital photos for forensics use.

Photography styles

Commercial photography
Commercial photography is probably best defined as any photography to which money exchanges hands. In this light money could be paid for the subject of the photograph or the photograph itself. Wholesale, retail, and professional uses of photography would fall under this definition. The commercial photographic world could include:

* Advertising photography: photographs made to illustrate and usually sell a service or product. These images are generally done with an advertising agency, design firm or with an in-house corporate design team.

* Fashion and glamour photography: This type of photography usually incorporates models. Fashion photography emphasizes the clothes or product, glamour emphasizes the model. Glamour photography is popular in advertising and in men's magazines. Models in glamour photography may be nude, but this is not always the case.

* Crime Scene Photography: This type of photography consists of photographing scenes of crime such as robberies and murders. A black and white camera or an infrared camera may be used to capture specific details.

* Still life photography usually depicts inanimate subject matter, typically commonplace objects which may be either natural or man-made.

* Food photography can be used for editorial, packaging or advertising use. Food photography is similar to still life photography, but requires some special skills.

* Editorial photography: photographs made to illustrate a story or idea within the context of a magazine. These are usually assigned by the magazine.

* Photojournalism: this can be considered a subset of editorial photography. Photographs made in this context are accepted as a documentation of a news story.

* Portrait and wedding photography: photographs made and sold directly to the end user of the images.

* Fine art photography: photographs made to fulfill a vision, and reproduced to be sold directly to the customer.

* Landscape photography: photographs of different locations made to be sold to tourists as postcards

* Conceptual photography: Photography that turns a concept or idea into a photograph. Even though what is depicted in the photographs are real objects, the subject is strictly abstract.

* Wildlife photography that demonstrates life of the animals.

* Photo sharing: publishing or transfer of a user's digital photos online.

The market for photographic services demonstrates the aphorism "one picture is worth a thousand words," which has an interesting basis in the history of photography. Magazines and newspapers, companies putting up Web sites, advertising agencies and other groups pay for photography. Many people take photographs for self-fulfillment or for commercial purposes. Organizations with a budget and a need for photography have several options: they can employ a photographer directly, organize a public competition, or obtain rights to stock photographs. Photo stock can be procured through traditional stock giants, such as Getty Images or Corbis; smaller microstock agencies, such as Fotolia; or web marketplaces, such as Cutcaster.

Photography as an art form
During the twentieth century, both fine art photography and documentary photography became accepted by the English-speaking art world and the gallery system. In the United States, a handful of photographers, including Alfred Stieglitz, Edward Steichen, John Szarkowski, and Edward Weston, spent their lives advocating for photography as a fine art. At first, fine art photographers tried to imitate painting styles. This movement is called Pictorialism, often using soft focus for a dreamy, 'romantic' look. In reaction to that, Weston, Ansel Adams, and others formed the f/64 Group to advocate 'straight photography', the photograph as a (sharply focused) thing in itself and not an imitation of something else. The aesthetics of photography is a matter that continues to be discussed regularly, especially in artistic circles. Many artists argued that photography was the mechanical reproduction of an image. If photography is authentically art, then photography in the context of art would need redefinition, such as determining what component of a photograph makes it beautiful to the viewer. The controversy began with the earliest images "written with light"; Nicéphore Niépce, Louis Daguerre, and others among the very earliest photographers were met with acclaim, but some questioned if their work met the definitions and purposes of art.

Clive Bell in his classic essay Art states that only "significant form" can distinguish art from what is not art. “ There must be some one quality without which a work of art cannot exist; possessing which, in the least degree, no work is altogether worthless. What is this quality? What quality is shared by all objects that provoke our aesthetic emotions? What quality is common to Sta. Sophia and the windows at Chartres, Mexican sculpture, a Persian bowl, Chinese carpets, Giotto's frescoes at Padua, and the masterpieces of Poussin, Piero della Francesca, and Cezanne? Only one answer seems possible - significant form. In each, lines and colors combined in a particular way, certain forms and relations of forms, stir our aesthetic emotions. ” On February 14th 2006 Sotheby’s London sold the 2001 photograph "99 Cent II Diptychon" for an unprecedented $3,346,456 to an anonymous bidder making it the most expensive of all time.

Technical photography
The camera has a long and distinguished history as a means of recording phenomena from the first use by Daguerre and Fox-Talbot, such as astronomical events (eclipses for example) and small creatures when the camera was attached to the eyepiece of microscopes (in photomicroscopy). The camera also proved useful in recording crime scenes and the scenes of accidents, one of the first uses being at the scene of the Tay Rail Bridge disaster of 1879. The set of accident photographs was used in the subsequent court of inquiry so that witnesses could identify pieces of the wreckage, and the technique is now commonplace in courts of law. The set of over 50 Tay bridge photographs are of very high quality and when scanned at high resolution, can be enlarged to show details of the failed components such as broken cast iron lugs and the tie bars which failed to hold the towers in place. They show that the bridge was badly designed, badly built and badly maintained. Between 1846 and 1852 Charles Brooke invented a technology for the automatic registration of instruments by photography. These instruments included barometers, thermometers, psychrometers, and magnetometers, which recorded their readings by means of an automated photographic process.

Other photographic image forming techniques
Besides the camera, other methods of forming images with light are available. For instance, a photocopy or xerography machine forms permanent images but uses the transfer of static electrical charges rather than photographic film, hence the term electrophotography. Photograms are images produced by the shadows of objects cast on the photographic paper, without the use of a camera. Objects can also be placed directly on the glass of an image scanner to produce digital pictures.

WHAT IS A PHOTOGRAPH?
A photograph (often shortened to photo) is an image created by light falling on a light-sensitive surface, usually photographic film or an electronic imager such as a CCD or a CMOS chip. Most photographs are created using a camera, which uses a lens to focus the scene's visible wavelengths of light into a reproduction of what the human eye would see. The process of creating photographs is called photography. The word "photograph" coined 1839 by Sir John Herschel and is based on the Greek (phos), "light" + (graphis), "stylus", "paintbrush" or (graphê), "representation by means of lines" or "drawing", together meaning "drawing with light"

History of the Photograph
The first permanent photograph was made in 1826 by a French inventor, Joseph Nicéphore Niépce, building on a discovery by Johann Heinrich Schultz (1724): that a silver and chalk mixture darkens under exposure to light. Niépce and Louis Daguerre refined this process. Daguerre discovered that exposing the silver first to iodine vapor, before exposure to light, and then to mercury fumes after the photograph was taken, could form a latent image; bathing the plate in a salt bath then fixes the image. These ideas led to the famous daguerreotype. The daguerreotype had its problems, notably the fragility of the resulting picture, and that it was a positive-only process and thus could not be re-printed. Inventors set about looking for improved processes that would be more practical. Several processes were introduced and used for a short time between Niépce's first image and the introduction of the collodion process in 1848. Collodion-based wet-glass plate negatives with prints made on albumen paper remained the preferred photographic method for some time, even after the introduction of the even more practical gelatin process in 1871. Adaptations of the gelatin process have remained the primary black-and-white photographic process to this day, differing primarily in the film material itself, originally glass and then a variety of flexible films. Color photography is almost as old as black-and-white, with early experiments dating to John Herschel's experiments with Anthotype from 1842, and Lippmann plate from 1891. Color photography became much more popular with the introduction of Autochrome Lumière in 1903, which was replaced by Kodachrome, Ilfochrome and similar processes. For many years these processes were used almost exclusively for transparencies (in slide projectors and similar devices), but color prints became popular with the introduction of the Chromogenic negative, which is the most-used system in the C-41 process. The needs of the movie industry have also introduced a host of special-purpose systems, perhaps the most well known being the now-rare Technicolor.

Types of photographs
Non-digital photographs are produced with a two-step chemical process. In the two-step process the light-sensitive film captures a negative image (colors and lights/darks are inverted). To produce a positive image, the negative is most commonly transferred ('printed') onto photographic paper. Printing the negative onto transparent film stock is used to manufacture motion picture films. Alternatively, the film is processed to invert the negative image, yielding positive transparencies. Such positive images are usually mounted in frames, called slides. Before recent advances in digital photography, transparencies were widely used by professionals due to their sharpness and accuracy of color rendition. Most photographs published in magazines were taken on color transparency film. Originally all photographs were monochromatic, or hand-painted in color. Although methods for developing color photos were available as early as 1861, they did not become widely available until the 1940s or 50s, and even so, until the 1960s most photographs were taken in black and white. Since then, Color photography has dominated popular photography, although black and white is still used, being easier to develop than color. Panoramic format images can be taken with cameras like the Hasselblad Xpan on standard film. Since the 1990s, panoramic photos have been available on the Advanced Photo System film. APS was developed by several of the major film manufacturers to provide a film with different formats and computerized options available, though APS panoramas were created using a mask in panorama-capable cameras, far less desirable than a true panoramic camera which achieves its effect through wider film format. APS has become less popular and is being discontinued. The advent of the microcomputer and digital photography has led to the rise of digital prints. These prints are created from stored graphic formats such as JPEG, TIFF, and RAW. The types of printers used include inkjet printers, dye-sublimation printer, laser printers, and thermal printers. Inkjet prints are sometimes given the coined name "Giclée".

Photograph Preservation

Paper folders
Ideal photograph storage involves placing each photo in an individual folder constructed from buffered, or acid-free paper. Buffered paper folders are especially recommended in cases when a photograph was previously mounted onto poor quality material or using an adhesive that will lead to even more acid creation. Store photographs measuring 8x10 inches or smaller vertically along the longer edge of the photo in the buffered paper folder, within a larger archival box, and label each folder with relevant information in order to identify it. The rigid nature of the folder protects the photo from slumping or creasing, as long as the box is not packed too tightly or under filled. Folder larger photos or brittle photos stacked flat within archival boxes with other materials of comparable size.

Polyester enclosures
The most stable of plastics used in photo preservation, polyester, does not generate any harmful chemical elements, but nor does it have any capability to absorb acids generated by the photograph itself. Polyester sleeves and encapsulation have been praised for their ability to protect the photograph from humidity and environmental pollution, slowing the reaction between the item and the atmosphere. This is true, however the polyester just as frequently traps these elements next to the material it is intended to protect. This is especially risky in a storage environment that experiences drastic fluctuations in humidity or temperature, leading to ferrotyping, or sticking of the photograph to the plastic. Photographs sleeved or encapsulated in polyester cannot be stored vertically in boxes because they will slide down next to each other within the box, bending and folding, nor can the archivist write directly onto the polyester to identify the photograph. Therefore, it is necessary to either stack polyester protected photographs horizontally within a box, or bind them in a three ring binder. Stacking the photos horizontally within a flat box will greatly reduce ease of access, and binders leave three sides of the photo exposed to the effects of light[6] and do not support the photograph evenly on both sides, leading to slumping and bending within the binder. The plastic used for enclosures has been manufactured to be as frictionless as possible in order to prevent abrading and scratching the photos during insertion to the sleeves. Unfortunately, the slippery nature of the enclosure generates a build-up of static electricity, which attracts dust and lint particles. The static can attract the dust to the inside of the sleeve, as well, where it can scratch the photograph. Likewise, these components that aid in insertion of the photo, referred to as slip agents, can break down and transfer from the plastic to the photograph, where they deposit as an oily film, attracting further lint and dust. At this time, there is no test to evaluate the long-term effects of these components on photographs. In addition, the plastic sleeves can develop kinks or creases in the surface, which will scratch away at the emulsion during handling.

Handling and care
It is best to leave photographs lying flat on the table when viewing them. Do not pick it up from a corner, or even from two sides and hold it at eye level. Every time the photograph bends, even a little, this can break down the emulsion. The very nature of enclosing a photograph in plastic encourages users to pick it up; users tend to handle plastic enclosed photographs less gently than non-enclosed photographs, simply because they feel the plastic enclosure makes the photo impervious to all mishandling. As long as a photo is in its folder, there is no need to touch it; simply remove the folder from the box, lay it flat on the table, and open the folder. If for some reason the researcher or archivist does need to handle the actual photo, perhaps to examine the verso for writing, he or she can use gloves if there appears to be a risk from oils or dirt on the hands.

Myths and beliefs
Photographs capture a life-like view of the subject whereas paintings were subject to the interpretations and level of skill of the painter. Thus, since daguerreotypes were rendered on a mirrored surface, many spiritualists also became practitioners of the new art form. Spiritualists would claim that the human image on the mirrored surface was akin to looking into one's soul. The spiritualists also believed that it would open their souls and let demons in. Aborigines believed that taking one's picture took part of one's soul away.

What is Wedding Photography?
Wedding photography is a major commercial endeavor that supports the bulk of the efforts for many photography studios or independent photographers.

History of Wedding Photography
Like the technology of photography itself, the practice of wedding photography has evolved and grown since the invention of the art form in 1826 by Joseph Nicéphore Niépce. In fact, an early photograph, recorded some 14 years after the fact, may be a recreation for the camera of the 1840 wedding of Queen Victoria to Prince Albert. However in the early days of photography, most couples of more humble means did not hire a photographer to record the actual wedding itself. Until the later half of the 19th century, most people didn’t pose for formal wedding photos during the wedding. Rather they might pose for a formal photo in their best clothes before or after a wedding. In the late 1860s, more couples started posing in their wedding clothes or sometimes hired a photographer to come to the wedding venue. (See the gallery at White wedding.) Due to the nature of the bulky equipment and lighting issues, wedding photography was largely a studio practice for most of the late 1800s. Over time, technology improved, but many couples still might only pose for a single wedding portrait. Wedding albums started becoming more commonplace towards the 1880s. By then, the photographer would start including the wedding party in the photographs. Often the wedding gifts would be laid out and recorded in the photographs as well. In the beginning of the 20th century, color photography became available, but color photography was still too unreliable and expensive so most wedding photography was still practiced in black and white. The concept of capturing the wedding "event" came about after the Second World War. Using film roll technology and improved lighting techniques available with the invention of the compact flash bulb, often photographers would simply show up at a wedding and try to sell the photos later. Despite the initial low quality photographs that often resulted, the competition forced the studio photographers to start working on location. Initially, professional studio photographers might bring a lot of bulky equipment, thus limiting their ability to record the entire event. Even candid photos were more often staged after the ceremony. In the 1970s the more modern approach to recording the entire wedding event started evolving into the practice as we know it today.

Technology
During the film era, photographers favored color negative film and medium-format cameras, especially by Hasselblad. Today, many more weddings are photographed with digital SLR cameras as the digital convenience provides quick detection of lighting mistakes and allows creative approaches to be reviewed immediately. In spite of diminishing film use, some photographers continue to shoot with film as they prefer the film aesthetic, while others are of the opinion that negative film captures more information than digital technology, with less margin for exposure error. Certainly true in some cases, it should be noted that exposure latitude inherent in a camera's native RAW image format (which allows for more under- and over- exposure than JPEG[3]) varies from manufacturer to manufacturer. All forms of RAW have a degree of exposure latitude which exceeds slide film - to which digital capture is commonly compared. Currently however, it is fair to say that many professional labs have a greater capacity to provide services in post-production for film compared with digital[citation needed], such as quickly generate adequate prints in the event of some over- or under- exposure. This should change over time, with manufacturers like Kodak announcing a commitment to further develop streamlined services in the area of professional digital lab output. Technology has evolved with the use of remote triggers and flashes. Wedding photographers are now able to take advantage of travelling light and having the ability to use creative lighting.

Approaches
There are two primary approaches to wedding photography that are recognized today: Traditional and Photojournalistic. Traditional wedding photography provides for more classically posed images and a great deal of photographer control and interaction on the day of the wedding. Photojournalistic wedding photography takes its cue from editorial reporting styles and focuses more on candid and unposed images with little photographer interaction. These are two extremes and many of today's photographers will fall somewhere in the middle of these two styles. A third style that is becoming more and more in demand is a fashion-based approach. In contemporary/fashion-based wedding photography, photojournalistic images of the events of the day are combined with posed images that are inspired by editorial fashion photography as would be found in magazines like Vogue or Vanity Fair.

The term contemporary wedding photography is used to describe wedding photography that is not of a traditional nature. The emphasis in contemporary photography is to capture the story and atmosphere from the day, so the viewer has an appreciation of what the wedding was like, rather than a series of pre-determined poses. However, this term can be mistaken for meaning any photograph that is not posed or formal. The advent and advancement of digital cameras and increased use of the internet mean that many people can offer their services as a wedding photographer. However, contemporary wedding photography is more than just not taking very formal photographs and involves the use of composition, lighting and timing to capture photographs that have a strong visual appeal. There is some uncertainty over what constitutes contemporary and how this differs from other forms of wedding photography. The PSA Journal, March 1994, records a debate on this subject.. This highlights the difficulty with the word contemporary when defining photographic expression, as some feel this term is not sufficiently defined. For example, is photojournalism contemporary or are they different? Photojournalism is easier to define, as the term infers the photography is by its nature similar to journalism, where the emphasis is upon reporting and recording events in a newsworthy manner, whereas contemporary may include an element of photojournalism but is not exclusively that style of photography.

Albums, prints, and other products
A contemporary wedding photographer will usually need to provide some or all of the following:

* Formal portraiture in the studio (for either the wedding and/or the engagement photos).
* Outdoor photography (often at a park, beach or scenic location on the day of the wedding and/or for engagement photos).
* Indoor photography at a church, temple or other private venue during the ceremony and reception.
* Both posed and candid (photojournalistic) shots of the wedding couple and their guests at the religious or civil ceremony and the reception that follows.
* Digital services such as digital prints or slides shows.
* Albums (either traditional or the more contemporary flush mount type of album).

The range of deliverables that a wedding photographer presents is varied. There is no standard as to what is included in a wedding coverage or package, so products vary regionally and from photographer to photographer, as do the number of images provided. Most photographers provide a set of proofs (usually unretouched, edited images) for the clients to view. Photographers may provide hard copy proofs in the form of 4x5 or 4x6 prints, a "magazine" of images with thumbnail sized pictures on multiple pages, an online proof gallery, images on CD or DVD in the form of a gallery or a slideshow, or a combination of the above. Some photographers provide these proofs for the client to keep, and some photographers require the client to make final print choices from the proofs and then return them or purchase them at an additional cost. There are a wide variety of albums and manufacturers available and photographers may provide traditional matted albums, digitally designed "coffee table" albums, contemporary flush mount albums, hardbound books, scrapbook style albums or a combination of any of the above. Albums may be included as part of a pre-purchased package, or they may be added as an after-wedding purchase. Not all photographers provide albums; some may prefer to provide prints and/or files and let clients make their own albums.

Most photographers allow clients to purchase additional prints for themselves or their families. Many photographers now provide online sales either through galleries located on their own websites or through partnerships with other vendors. Those vendors typically host the images and provide the back end sales mechanism for the photographer; the photographer sets his or her own prices and the vendor takes a commission or charges a flat fee. With the increased ability of consumers to scan images and get high quality prints with inexpensive scanners and printers, some photographers are also including high resolution files in their packages. These photographers allow their clients limited rights to reproduce the images for their personal use, while retaining the copyright. Not all photographers release files and those who do will most likely charge a premium for them, since releasing files means giving up any after wedding print or album sales for the most part. Photographers who do not retain copyright of the images often charge more for their services. In these cases the photographer provides the client with the digital images as part of the wedding package. The client then has unrestricted use of the images and can print any they may desire.

Profession
The wedding photography industry is home to some of the most respected names within the photography industry, including celebrity wedding photographer Joe Buissink, New York based Christian Oth, California's Mike Colon, Canada's Jesh De Rox, The Bebb's and Denis Reggie. Some of these figures were recently listed in PopPhoto's Top 10 Wedding Photographers in the World. These figures represent the historical rise of wedding photojournalism, fashion, couture-style portraits and all digital work-flow. As a wedding is a one-time event, the photographer must be prepared for the unexpected. Shooting a wedding is both exhausting and invigorating as the photographer is constantly looking for good angles and opportunities for candid shots. Communication and planning time lines before the event will alleviate many of the stresses associated with photographing a wedding. An ability to tactfully take charge also helps - particularly when photographing large groups or families - a common expectation after the ceremony. Having a run list with all of the expected shots is also a useful tool. A photographer may work with an assistant who can carry equipment, arrange guests and assist in the shooting through clothing adjustments or the holding up of reflectors. Wedding photographers usually have an office or studio which can double as a retail photography studio. In bigger cities you might find dedicated wedding studios that only shoot weddings and may have large studios equipped with make-up and hair and gowns ready for the bride to wear. Some studios also have arrangements with bridal shops allowing the bride to try several gowns during her portrait session.