Gear Talk > EOS Bodies - For Stills

Auto Focus question

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nikkito:
Hey there! I've been taking photos with my 5D Mk II for some time now. fact is, I always use the center focus point. And by always I mean always, I'm used to focusing and recomposing. My question is simple: all of you having cameras with complex autofocus systems (1D, 7D, and now 5D Mk III), how do u use autofocus? Zones? Center point? Etc...

I would like to read what you have to say.
To specify a bit, let's talk about portraits ( I cannot imagine myself using something different than the center focus point), concerts, sports and landscapes.

Thanks in advance & take care :)
Nico :)

Drizzt321:
I'm very interested in figuring it out myself :)  Just got the 5d3, and like you coming from a 5d2. From the few minutes I've had with it so far (darn you work!!) it's got zomgtonsofautofocuspoints!1!!  Seriously, it feels like the entire view finder is covered with them!

I'll have to see how it works, but I imagine I'll either be using all of them, or point + surrounding points as my primary settings.

Spooky:
I had real issues, as did others, when I got my 7D and used the 'all zone' all points (can't remember what it's called). The camera would usually focus on the nearest point in the frame, not necessarily what was lit in the viewfinder. I set it to centre point expansion and it has been faultless since.
The 5d3 may be better... I haven't bought one, yet.

JR:
I had the 5DmkIII for the week-end and from what I could see from the AF, for portrait I would still use a single point center focus most of the time, but the cool thing is because the other point (unlike in the 5DmkII( are also very presice and sensitive, you you can still use a single point but pick the one best suiting your shot composition - so bye bye focus and recomposition method.  I think this is cool.

For tracking moving objects, then I would use the zone AF method and pick the zone that works with the composition you are looking for...

CanineCandidsByL:
I'm fond of all methods at times that feel appropriate to me.

When on a tripod and doing portraits, I like to use a single point which I move where appropriate.
Same scenario but more mobile subjects (kids), I use zones and hope a little.

Sports or fast moving subjects, center point only and put it where I want the focus. Zoom out a bit to leave room to crops.

I frequently leave it on all zone coverage when I'm not doing anything else. Not sure why I do that instead of center zone, but I do.

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