CANON EOS 1D MARK IV REVIEW - Amateur Photographer

Discussion in 'Digital Cameras' started by Bruce, Aug 10, 2010.

  1. Bruce

    Bruce Guest

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  2. Bruce

    Bruce Guest


    It's the usual British understatement that you should expect from a
    review in Amateur Photographer. I thought it was actually quite
    damning. ;-)


    It is nice that Canon appears to have fixed its AF problems. I fear
    it is *only the appearance* that has been fixed.
     
    Bruce, Aug 11, 2010
    #2
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  3. Bruce

    Will T Guest

    I don't see how any continuous AF system can be called "fixed" when it
    wouldn't be able to be used with any longer lenses that don't have wide
    enough apertures. And can't be used at all with most lenses when using a 2x
    tele-converter for wildlife and sports photography, the very subjects when
    it would be most needed. A fairly senseless system. Looks good in print
    though, doesn't it. Mostly useless in the real world.
     
    Will T, Aug 11, 2010
    #3
  4. Bruce

    Ofnuts Guest

    So, that would be exactly like contrast AF in wildlife and sports.
    Except the 1D AFs at f/8, so you can use it with the fairly common 300mm
    f/4 and a 2x TC (with the 1.3 crop factor: 300x2x1.3=780mm). And on less
    expensive bodies you can still use the same lens with a 1.4x TC (672mm
    equivalent lens, 1.6 crop factor). Or a 100-400mm f/5.6 lens (640mm
    equivalent).
     
    Ofnuts, Aug 11, 2010
    #4
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