can someone tell me the names of all the lenses for canon slr camera and what are they for?

Question by kolin v: can someone tell me the names of all the lenses for canon slr camera and what are they for?
I want to know what is the difference between telephote and just a lense and what do other types of lenses do and how are they different from each other. Thank you.

Best answer:

Answer by It’s That Guy
There have to be dozens or even hundreds of lenses available for a Canon. Nobody could list them all.

A ‘normal’ lens is 45-55mm for a 35 mm camera. 45 or 50 04 55mm, this is the focal length, actually the distance between the lens and the film when the lens is focussed on infinity.

A ‘normal’ lnes takes a picture about the same as you see with your eyes. Shorter lenses (35mm, 25mm) are wide angle lenses that make a picture of a bigger area. Longer lenses (75mm, 90mm, 130mm, 200mm, etc.) are telephotos and take a picture of a smaller area (or farther away). Telephotos go up to 1000mm and higher, so they can even be like telescopes. With a 1000mm lens you can get a good picture of the moon!

Then there are zoom lenses which have adjustable focal lengths. Usually they go from slightly telephoto to long telephoto, or from wide angle to about normal. They are more expensive and heavier, but are more convenient than walking back and forth to get the right composition.

If you’ve ever heard of a ‘fish eye’ lens, that’s an extreme wide-angle that takes in such a wide area that it distorts the picture.

Lenses also differ in f-stop, that’s how wide a lens is. The f-stop is related to the focal length so the longer lenses are, generally the narrower the f-stop, which limits how dim the light can be for you to get a good picture. A normal lens might be F:2, meaning it’s 1/2 as wide as the focal length. And the lens has an ‘aperture’ in it that is adjustable from f:2 (or whatever is the widest) to f:16 or F:22, the narrowest. For your regular lens, wider is nicer because you can shoot in less light.

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