hobbit wrote:Now that I\'m shooting more with primes, I find shooting portraits at f 2.0 and wider that the 5D\'s AF points are almost useless. Given how centered they are, I often find it hard to nail the focus on my subjects eyes. Did Canon purposely cripple the camera? Now that I have the 1DIII, other than the occasional time when I need to shoot super wide, when will I need the camera? I plan to keep it as a back up or until I can justify a step up to the 1DsIII.
Just wondering if others have had a similar experience or how others have mastered using the 5D with fast primes. Even shooting in Servo mode it\'s a crap shoot.
I have/had exactly the same experience as you when shooting the 5D/5D2 with fast primes wide open. Focus was all over the place. My guess is that the 5D/5D2\'s AF operates with rather loose margins for placing focus (in comparison to a 1D series body). Also, the AF sensors cover a much larger area, which makes it difficult to pin point the AF on relatively small objects/subjects, like an eye. It was one of my main reasons to add a 1Ds3: more reliable/accurate AF with fast apertures and better outer AF point performance (for using manually selected AF points on eyes in portrait mode).
Nov 23, 2009 at 04:34 AM
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