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Kamis, 31 Juli 2008

21 Tips for Amateur Wedding Photographers


“Help me - I’m photographing my first Wedding!… Help me with some Wedding Photography Tips Please!”

It’s a question that’s been asked a few times in our forums over the last few months so while I’m not a Pro Wedding Photographer I thought it was time to share a few tips on the topic of Wedding Photography .
I’ll leave the technical tips of photographing a wedding to the pros - but as someone who has been asked to photograph numerous friends and family weddings - here are a few suggestions.

Wedding Photography Tips
1. Create a ‘Shot List’
Get the couple to think ahead about the shots that they’d like you to capture on the day and compile a list so that you can check them off. This is particularly helpful in the family shots. There’s nothing worse than getting the photos back and realizing you didn’t photograph the happy couple with grandma!


2. Family Photo Coordinator
I find the family photo part of the day can be quite stressful. People are going everywhere, you’re unaware of the different family dynamics at play and people are in a ‘festive spirit’ (and have often been drinking a few spirits) to the point where it can be quite chaotic. Get the couple to nominate a family member (or one for each side of the family) who can be the ‘director’ of the shoot. They can round everyone up, help get them in the shot and keep things moving so that the couple can get back to the party.

3. Scout the Location
Visit the locations of the different places that you’ll be shooting before the big day. While I’m sure most Pros don’t do this - I find it really helpful to know where we’re going, have an idea of a few positions for shots and to know how the light might come into play. On one or two weddings I even visited locations with the couples and took a few test shots (these made nice ‘engagement photos’).


4. Preparation is key
So much can go wrong on the day - so you need to be well prepared. Have a backup plan (in case of bad weather), have batteries charged, memory cards blank, think about routes and time to get to places and get an itinerary of the full day so you know what’s happening next. If you can, attend the rehearsal of the ceremony where you’ll gather a lot of great information about possible positions to shoot from, the lighting, the order of the ceremony etc


5. Set expectations with the Couple
Show them your work/style. Find out what they are wanting to achieve, how many shots they want, what key things they want to be recorded, how the shots will be used (print etc). If you’re charging them for the event, make sure you have the agreement of price in place up front.


6. Turn off the sound on your camera
Beeps during speeches, the kiss and vows don’t add to the event. Switch off sound before hand and keep it off.


7. Shoot the small details
Photograph rings, backs of dresses, shoes, flowers, table settings, menus etc - these help give the end album an extra dimension. Flick through a wedding magazine in a news stand for a little inspiration.


8. Use Two Cameras
Beg, borrow, hire or steal an extra camera for the day - set it up with a different lens. I try to shoot with one wide angle lens (great for candid shots and in tight spaces (particularly before the ceremony in the preparation stage of the day) and one longer lens (it can be handy to have something as large as 200mm if you can get your hands on one - I use a 70-200mm).


9. Consider a Second Photographer
Having a second backup photographer can be a great strategy. It means less moving around during ceremony and speeches, allows for one to capture the formal shots and the other to get candid shots. It also takes a little pressure off you being ‘the one’ to have to get every shot!


10. Be Bold but Not Obtrusive
Timidity won’t get you ‘the shot’ - sometimes you need to be bold to capture a moment. However timing is everything and thinking ahead to get in the right position for key moments are important so as not to disrupt the event. In a ceremony I try to move around at least 4-5 times but try to time this to coincide with songs, sermons or longer readings. During the formal shots be bold, know what you want and ask for it from the couple and their party. You’re driving the show at this point of the day and need to keep things moving.

11. Learn how to Use Diffused Light
The ability to bounce a flash or to diffuse it is key. You’ll find that in many churches that light is very low. If you’re allowed to use a flash (and some churches don’t allow it) think about whether bouncing the flash will work (remember if you bounce off a colored surface it will add a colored cast to the picture) or whether you might want to buy a flash diffuser to soften the light. If you can’t use a flash you’ll need to either use a fast lens at wide apertures and/or bump up the ISO. A lens with image stabilization might also help. Learn more about
Using Flash Diffusers and Reflectors.

12. Shoot in RAW
I know that many readers feel that they don’t have the time for shooting in RAW (due to extra processing) but a wedding is one time that it can be particularly useful as it gives so much more flexibility to manipulate shots after taking them. Weddings can present photographers with tricky lighting which result in the need to manipulate exposure and white balance after the fact - RAW will help with this considerably.

13. Display Your Shots at the Reception
One of the great things about digital photography is the immediacy of it as a medium. One of the fun things I’ve seen more and more photographers doing recently is taking a computer to the reception, uploading shots taken earlier in the day and letting them rotate as a slideshow during the evening. This adds a fun element to the night.


14. Consider Your Backgrounds
One of the challenges of weddings is that there are often people going everywhere - including the backgrounds of your shots. Particularly with the formal shots scope out the area where they’ll be taken ahead of time looking for good backgrounds. Ideally you’ll be wanting uncluttered areas and shaded spots out of direct sunlight where there’s unlikely to be a wandering great aunt wander into the back of the shot. Read more on
getting backgrounds right.

15. Don’t Discard Your ‘Mistakes’
The temptation with digital is to check images as you go and to delete those that don’t work immediately. The problem with this is that you might just be getting rid of some of the more interesting and useable images. Keep in mind that images can be cropped or manipulated later to give you some more arty/abstract looking shots that can add real interest to the end album.

16. Change Your Perspective
Get a little creative with your shots. While the majority of the images in the end album will probably be fairly ‘normal’ or formal poses - make sure you mix things up a little by taking shots from
down low, up high, at wide angles etc.

17. Group Shots
One thing that I’ve done at every wedding that I’ve photographed is attempt to photograph everyone who is in attendance in the one shot. The way I’ve done this is to arrange for a place that I can get up high above everyone straight after the ceremony. This might mean getting tall ladder, using a balcony or even climbing on a roof. The beauty of getting up high is that you get everyone’s face in it and can fit a lot of people in the one shot. The key is to be able to get everyone to the place you want them to stand quickly and to be ready to get the shot without having everyone stand around for too long. I found the best way to get everyone to the spot is to get the bride and groom there and to have a couple of helpers to herd everyone in that direction. Read more on
how to take Group Photos.

18. Fill Flash
When shooting outside after a ceremony or during the posed shots you’ll probably want to keep your flash attached to give a little fill in flash. I tend to dial it back a little (a stop or two) so that shots are not blown out - but particularly in backlit or midday shooting conditions where there can be a lot of shadow, fill in flash is a must. Read more about using
Fill Flash.

19. Continuous Shooting Mode
Having the ability to shoot a lot of images fast is very handy on a wedding day so switch your camera to
continuous shooting mode and use it. Sometimes it’s the shot you take a second after the formal or posed shot when everyone is relaxing that really captures the moment!

20. Expect the Unexpected
One more piece of advice that someone gave me on my own wedding day. ‘Things will Go Wrong - But They Can be the Best Parts of the Day’. In every wedding that I’ve participated in something tends to go wrong with the day. The best man can’t find the ring, the rain pours down just as the ceremony ends, the groom forgets to do up his fly, the flower girl decides to sit down in the middle of the aisle or the bride can’t remember her vows….


These moments can feel a little panicky at the time - but it’s these moments that can actually make a day and give the bride and groom memories. Attempt to capture them and you could end up with some fun images that sum up the day really well.

I still remember the first wedding I photographed where the bride and grooms car crashed into a Tram on the way to the park where we were going to take photos. The bride was in tears, the groom stressed out - but after we’d all calmed down people began to see some of the funny side of the moment and we even took a couple of shots before driving on to the park. They were among everyone’s favorites.

21. Have Fun
Weddings are about celebrating - they should be fun. The more fun you have as the photographer the more relaxed those you are photographing will be. Perhaps the best way to loosen people up is to smile as the photographer (warning: I always come home from photographing weddings with sore jaws and cheeks because of of my smiling strategy).


From digital Photography School

Jumat, 25 Juli 2008

Photographic

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. Modern 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.

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 entering 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.
- ISO speed – traditionally used to set 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 focal length of the lens (which changes as the lens is zoomed). Changing any of these controls alters the exposure. Many cameras may be set to adjust most or all of these controls automatically. This automatic functionality is useful in many situations, and in most situations to occasional photographers.

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 , 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 textureglossy, 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

Rabu, 23 Juli 2008

Photography types

(wratten #25) to enhance or diminish the rendering of certain light wavelengths.

Black-and-white photography
See also:
Monochrome 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
Main article:
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.

Early color photograph taken by Prokudin-Gorskii (1915)
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.

Digital photography
Main article:
Digital photography
See also: Digital versus film photography

Nikon dSLR and scanner, which converts film images to digital
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.[3]

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.[4]
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.

Photography styles

Commercial photography

Manual shutter control and exposure settings can achieve unusual results
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.

Pornography
Explicit depiction of sexual subject matter, especially with the sole intention of sexually exciting the viewer using a variety of media including photography. See History of erotic photography.

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.

From Wikipedia

Senin, 21 Juli 2008

Photography

From Wikipedia, the free encyclopedia

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.

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 φώς (phos) "light" + γραφίς (graphis) "stylus", "paintbrush" or γραφή (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.

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.