Speedlites, Printers, Accessories / Re: Can we all send a complaint to Canon to fix the AF-Assist focusing on the 5D3?« on: November 07, 2012, 10:59:52 AM »
How much slower? Is it possible to put a time or percentage against this?
I have to admit I was unaware of this issue. I want to get a 5D3 next year but I will absolutly be using it in low light flash situations, off camera lighting not an option. Is this a show stopper?
It's not a show stopper, but certainly something to be aware of if your work involves shooting with flash in very low light venues. The other significant slowdown factor with the 5D3 in very dark shooting environments is the non-illuminated AF points. So while hunting & waiting for AF, you've got to somehow keep track of your black focus point. In a situation where people are moving even slightly, the black AF points and the slow AF adds to the degradation of the spontaneity that is so vital in event photography.
But lets be clear. This scenario only kicks in when you're shooting in very low light locations. Just about everywhere else, the 5D3 AF is just fantastic.
That's been my experience too. I do BIF and miss those great shots with darker backgrounds which I used to get those with my 7D. Thanks to the OP, because I thought I was being too critical of my own skills or was missing some setting.