 BetterPhoto Member |
film and lenses Im new to photography. I just borrowed my grammas camera, rebel 2000 EOS. As I understand its a 35mm camera. But it has a canon EF 28-80mm lens?! Then when I went to buy film, I wanted a color and a b/w roll, the color is 400 kodakmax for 35mm color prints. but the black roll says its 400CN film and then it has a 135/36. The 36 I think is the # exposures, but the 135 I think the lady said mm. she might be totally lost. my question is, can I take pics on a 135mm film (if thats what it means) on a 35mm camera?
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Jon Close |
So many numbers! I don't remember where the 1 came from (probably a Kodak catalog number), but "135" is the common model number for a canister of 35mm photographic film. The film is 35mm wide, edge to edge. You might also find on the box "24 x 36 mm" which is the size of the image between the sprocket holes. 135/24 is 24 exposure roll, 135/36 is 36 exposures. With respect to "400" (you'll also see "ISO 400" or "DIN 27 [degrees]") that is a measure of the film's sensitivity to light, ie. speed. ISO 400 speed film is twice as fast as 200 and four times as fast as 100, but only 1/2 as fast as 800. Faster film allows you to use faster shutter speeds in dim light so that your picture isn't blurry with movement (your subject's or the camera's). The DIN scale is used in Germany. Double the speed is a 3 degree change. ISO 100 = DIN 21, ISO 200 = DIN 24, ISO 400 = DIN 27, ... . The lens numbers 28-80mm refer to the variable focal lengths of the zoom lens. 28mm is a moderate wide angle view, between 40mm and 50mm gives a "normal" view, and 80mm is a short telephoto length. There are more numbers on the lens. On the front it probably has "58mm" next to a circle with a slash through it. That is the diameter of the front threads and tells you it accepts 58mm diameter filters. The lens will also have either "f/3.5-5.6" or "1:3.5-5.6" on it. That is the maximum aperture (f/3.5 at 28mm, f/5.6 at 80mm) Aperture is measured as a ratio to focal length so that an aperture of f/4 lets the same amount of light reach the film, regardless of the lens's focal length. The aperture number is the denominator of the ratio, so larger f-numbers refer to smaller apertures. f/16 lets in less light than f/5.6. Hope I haven't confused things further!
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