How many focus points do you use?

Single point for me and I use the multi controller to switch points.

liza wrote in post #4130504
One at a time. I change focus points based on the composition of the image.

ditto

I use the centre a lot of the time though when I'm shooting at wide apertures I use whichever one's closest to what I want in focus as focus->recompose using the centre point there can result in annoyingly OOF images

One at a time, with focus point expansion. Usually the center point but increasingly often an off center point for composition - when I have time to select one.

I never use the all points option, tried it a little but don't like it.

liza wrote in post #4130504
One at a time. I change focus points based on the composition of the image.

Yup...the joystick is a godsend for switching on the fly. I do have to go to the center point only in dim light, as the edge points just aren't good enough depending on the lens I have on at the time.

All of them - one at a time. Depends on the situation. Gotta love the 30D's multi-controller.

I use center point only with my 20D. I also use Custom Function 4 = 1 and often manually touch up the focus.

My lenses area all "L" lenses, though, and the focusing mechanisms are smooth and not super-quick like on the 18-55 "kit" lens. This makes manual focus much easier than with the cheap lenses.

On my 30/40D was only ever centre unless I was using camera in portrait mode

I use only the center one on my XT that has split focusing prism.
On 40D I use one closest to the point of interest.
Only in AI Servo, when panning a small target, I use all focusing points.

Usually one. But seldom the same one two shots running. Gotta love direct joystick control of AF point.

One, center

I use the * button for my focus. When I release it, it is set should something pass between me and my subject. If my subject is moving I keep it pressed and fire when ready. I used Cfn 4, selection 1 or 3. Most of the time 1.

Before I got my 40D and a faster (f2.8) lens I would only use the center point. Now with 9 cross type sensors, and getting used to using the multi-controller, I am able to quickly change points and get fast + accurate focus consistantly. I also use the AF-ON with my 40D and the * button with the 20D.

I shoot a lot of portraits at f2.8 or wider, and I always switch to use the focusing point on the subject's face (if available). WIth the xt there are only 9 focusing points and I often found myself focus and 'twist'.