Ben Rubinstein
pro member
I shoot weddings with a 5D. It's a great camera with only one failing, AF speed in low light (I always use center focusing point). I always shoot with flash and the check-focus-check using the IR assist light does not lend itself to fast shooting and when you are trying to shoot fleeting moments or fast moving dancing AF speed is crucial.
I know the 1D mkII focus speed is noticably faster than the 5D with the same lens (24-70L) and quieter too though I'm at a loss to explain how the sound is affected. However when the camera is using the IR assist light does it slow down to the same speed as the 5D? My 1Ds had no noticable speed advantage in low light when using the assist, compared to the 5D and even my 10D for that matter.
Would I be gaining speed by turning off the IR assist on my 5D in normal indoors light, not bright but not dark, say 1/60 f2.8 @ iso 400, would I lose accuracy? Would the 1D(s) mkII be significantly faster under the same conditions and darker with without the assist?
I remember Chuck mentioning on RG once that the 1 series does not have a low light AF advantage over the other bodies due to the added accuracy needed, however the 1D mkII has a pretty damn good reputation for focus speed.
Any thoughts?
p.s. one camera that knocked the pants off either my 5D or 1Ds was the D2X, wow is that super fast in low light, but let's not go there... ;-)
I know the 1D mkII focus speed is noticably faster than the 5D with the same lens (24-70L) and quieter too though I'm at a loss to explain how the sound is affected. However when the camera is using the IR assist light does it slow down to the same speed as the 5D? My 1Ds had no noticable speed advantage in low light when using the assist, compared to the 5D and even my 10D for that matter.
Would I be gaining speed by turning off the IR assist on my 5D in normal indoors light, not bright but not dark, say 1/60 f2.8 @ iso 400, would I lose accuracy? Would the 1D(s) mkII be significantly faster under the same conditions and darker with without the assist?
I remember Chuck mentioning on RG once that the 1 series does not have a low light AF advantage over the other bodies due to the added accuracy needed, however the 1D mkII has a pretty damn good reputation for focus speed.
Any thoughts?
p.s. one camera that knocked the pants off either my 5D or 1Ds was the D2X, wow is that super fast in low light, but let's not go there... ;-)