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Camera<br />

with an 8 x 10 view camera, which requires many minutes for setting up the tripod, focusing, stopping<br />

the lens down to taking aperture, closing the shutter, cocking the shutter, film loading, dark slide<br />

removal, and exposure. If your subject is a big mountain, you can probably afford to take your time<br />

making the image.<br />

Now that we have the factors in mind, let's dive into the types <strong>of</strong> cameras available:<br />

● view cameras (sheet film + perspective control)<br />

● single-lens reflex cameras (roll film, heavy in larger formats, very limited perspective control)<br />

● twin-lens reflex cameras (roll film, light and cheap, no perspective control)<br />

● rangefinder cameras (roll film, lightweight, no perspective control)<br />

● panoramic cameras (view camera lens + rangefinder body or rotating lens)<br />

Film Sizes<br />

A camera won't do you much good unless you can buy film in the right size for it. Companies like Fuji<br />

and Kodak will generally make the same emulsion (film formulation) in a variety <strong>of</strong> sizes.<br />

Almost every emulsion will be available in 35mm cartridges. The standard frame size for a 35mm<br />

camera is 24 x 36 mm.<br />

Most emulsions are available in "120 size" roll film. There are many standard widths for 120 camera<br />

frames: 645, 6x6, 6x7, 6x8, 6x9, 6x12, and 6x17. These numbers are ostensibly in centimeters although<br />

in practice a 6x6 camera such as a Hasselblad will expose a 56 x 56 mm frame. Comparatively few<br />

emulsions are available in 220, which is the same as 120 except that you get twice as many exposures/<br />

roll (24 rather than 12 for 6x6; 8 rather than 4 for 6x17 panoramics).<br />

If you need a larger negative than roll film, you must use sheet film. Standard American sizes are 4x5,<br />

5x7, 8x10, and 11x14. The dimensions are in inches. The largest sizes are wonderful for those who do<br />

darkroom work because they can be contact-printed into final framable results, avoiding the degradation<br />

<strong>of</strong> an enlarger lens. However, there is very little emulsion choice in 11x14 and not too much in 8x10 or<br />

5x7 either. Given the high quality <strong>of</strong> modern optics and film, for most applications these days, a 4 x 5<br />

inch sheet <strong>of</strong> film is large enough. Therefore that's where most <strong>of</strong> the demand is and where you get the<br />

best choice <strong>of</strong> emulsions.<br />

I'm not going to let my article on APS film and cameras serve as my repository for what I know about<br />

this format (somewhat smaller than 35mm). Despite the intriguing nature <strong>of</strong> spy cameras such as the<br />

Minox (Austin Powers used one to copy documents), film formats significantly smaller than 35mm are<br />

generally not useful for serious photographers.<br />

View Cameras<br />

http://www.photo.net/making-photographs/camera (2 <strong>of</strong> 9)7/3/2005 2:22:21 AM

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