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Thread: which pair focus faster ?

  1. #1

    Default which pair focus faster ?

    Hello,

    Base on below pair, which would focus faster ?
    Will it be significant enough to be noticeable ?

    I am thinking if it make sense to move from D40 to D80/90,
    as lenses seems to be much cheaper without the AFS/HSM.


    Nikon D40 + Sigma 30mm F1.4
    Nikon D80 + Nikon 50mm F1.4

  2. #2

    Default Re: which pair focus faster ?

    Quote Originally Posted by redwine View Post
    Hello,

    Base on below pair, which would focus faster ?
    Will it be significant enough to be noticeable ?

    I am thinking if it make sense to move from D40 to D80/90,
    as lenses seems to be much cheaper without the AFS/HSM.


    Nikon D40 + Sigma 30mm F1.4
    Nikon D80 + Nikon 50mm F1.4
    what does it matter to you, whether it focuses faster? do you shoot sports? if you want fast focusing, get an AF-S lens.
    It is such a quiet thing to fall,
    But far more terrible is to admit it

  3. #3
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    Default Re: which pair focus faster ?

    Its true to a certain extend, but not entirely true my AFS 18-135 focus is not as fast as the AF 50 f1.8...

    Quote Originally Posted by vonlichenstein View Post
    if you want fast focusing, get an AF-S lens.

  4. #4

    Default Re: which pair focus faster ?

    Quote Originally Posted by lastboltnut View Post
    Its true to a certain extend, but not entirely true my AFS 18-135 focus is not as fast as the AF 50 f1.8...
    really? mine seems to focus faster. hmmm.
    It is such a quiet thing to fall,
    But far more terrible is to admit it

  5. #5
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    Default Re: which pair focus faster ?

    Even the new AFS 18-105VR is commented as slow in a review I read. But its a kit lens.

    Quote Originally Posted by vonlichenstein View Post
    really? mine seems to focus faster. hmmm.

  6. #6
    Senior Member ZerocoolAstra's Avatar
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    Default Re: which pair focus faster ?

    either way, I think the difference in focusing time might be only a fraction of a second, eg. 1sec vs 1.7sec. Although it's a 70% difference, to me it's still not that noticeable or important. Unless shooting F1 cars or something Then you need to BBB!!!
    Exploring! :)

  7. #7

    Default Re: which pair focus faster ?

    i like to shoot candid, so fast focusing will be an advantage.

    For Nikon D40 + Sigma 30mm F1.4,
    the focusing will be thru the lens HSM.

    For Nikon D80 + Nikon 50mm F1.4 or F1.8,
    it will be thru the body screw drive.


    I was thinking whether to get the Sigma ($600) or Nikon ($200).
    If the D40+Sigma combo can focus significantly faster,
    then it might make sense to pay $400 more.
    If the focusing is the same, then i am thinking to upgrade my D40 to D80/90.

  8. #8
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    Default Re: which pair focus faster ?

    tell you what,

    why don't you go to a camera shop and test the lenses out yourself? Thats the best way to determine focusing speed right?

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