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Thread: USM or non-USM

  1. #1
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    Default USM or non-USM

    Whats the difference between Canon USM lens and non-USM lens? Any significant diff?

  2. #2

    Default Re: USM or non-USM

    Originally posted by currahee
    Whats the difference between Canon USM lens and non-USM lens? Any significant diff?
    of course there are different

    USM over non-USM
    • lesser noise while focusing
    • faster AF
    • more expensive
    See my Photo Gallery at the Clubsnap

  3. #3
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    Default

    at first, I thought it's "unsharp mask"....
    Check out my wildlife pics at www.instagram.com/conrad_nature

  4. #4
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    Default

    other than being quiet, faster n more expensive, is the lens better in terms of picture quality?

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