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EOS Bodies - For Stills / Re: 5D3 & 600ex-rt + AF assist beam = slower focus
« on: November 01, 2012, 04:40:59 PM »
I used my 5d3 combo last night it literally focused in an instant without the flash being turned on ( it was off by mistake) in the dark but when I turned the flash on, it was hunting for a few seconds. It is liek the beam isn't strong enough or the AF light isn't in sync with the lens. It is almost as if the beam goes away before the lens starts to auto focus.
I like being faceless