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Old Oct 11, 2006, 4:12 PM   #11
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A 28mm is not even close to a wide angle on an APS-C camera (28x1.6~45mm)... With the 24 barely cutting it @ ~39mm :idea:
-> The norm is at least 35mm or shorter! The Sigma 18-125 is quite good and slighly over $200 but it's not an f/2.8

... with regard to digital lenses the 3rd parties mount will fit (i.e. not EF-S) on the full-frame (and Tamron/Tokina even advertised they'll work on film cameras) - I guess it will be less a problem on a 1.3x
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Old Oct 11, 2006, 9:43 PM   #12
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I have a 20D. Is the 18-105 the lens you suggest I get?

Will it have a large enough aperture to use in a gym?
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Old Oct 12, 2006, 6:36 AM   #13
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RP33 wrote:
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I have a 20D. Is the 18-105 the lens you suggest I get?

Will it have a large enough aperture to use in a gym?
No. You need at LEAST an aperture of 2.8 and in some gyms that is not enough. In some gyms you need to use a prime lens with aperture of 2.0 or better.

You also have to be aware that if your goal is to do any type of action shooting focus speed is also an issue - the foocus system on lenses comes into play here so you want to be sure a lens not only has a wide aperture but is also fast to focus.
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Old Oct 12, 2006, 11:19 AM   #14
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Does anyone have a suggestion of a lens that would work other than prime and under $200? Or am I asking for the imposible?
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