Difference between AF, EF-S et cetera

Discussion in 'Photography Beginners' Forum' started by Freddeh, Aug 1, 2007.

  1. Freddeh
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    Freddeh New Member

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    Can someone give me a little explanation on the terms below?
    I know my Nikon D40 supports AF-S, but what's that all about?

    AF
    AF-S
    EF
    EF-S
    DX
  2. DSLR noob
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    DSLR noob New Member

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    you need not worry about EF or EF-S as they pertain to canon mounts.

    AF:autofocus lenses for nikon Mount
    AF-S: autofocus lenses for nikon cameras that don't have a built-in autofocus motor (D40 and D40x)

    For DX, I know it is a 3rd party term, I don't know if it's Sigma, Tamron, Tokina, or Quantaray. I don't buy 3rd party things.
  3. Freddeh
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    Freddeh New Member

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    So if I'm sticking to my D40 and want to make my life as easy as possible, I should go with AF lenses?
  4. lifeafter2am
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    lifeafter2am New Member

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    If you want to manually focus than yes. The D40 requires the AF-S lenses to autofocus.
  5. DSLR noob
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    DSLR noob New Member

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    AF-S lenses are the best for your camera. your camera doesn't "support AF-S" like it's a special feature, but rather it HAS to use them (to autofocus) and cannot properly support AF lenses. the D80 can use either one.

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