7D focus mode question

Just curious what you lot have enabled focus wise? Currently I have Zone, Single and Spot enabled but thinking of switching to just Af expansion and Spot.

I was thinking zone would help servo as it as a greater number of points to track through but after reading the above it is true how does the camera know what i want to focus on. So would expansion be better for accurate servo work. And spot for critical focus?

I'm mainly considering Servo AF. When in One Shot, you usually have time to see what the camera is doing, so that's not so critical. Besides, it has a strategy for selecting the point there too, when in automatic selection. It tries to pick the nearest object.

But in Servo AF and fully automatic AF point selection, the answer to how the camera should know where to focus is simple enough: There's a starting point you use to identify the target, and then the camera will track that target with any AF point required. At least in the best of worlds.

Single point and expansion may very well be a better option. I've "only" had the 40D so far, so I haven't had that option available. I'll have to practice that more to see how good it is.

Oct 20th...1D Mark IV.

PicSniper wrote in post #8812459
When was the replacement for the 7D released?

nicksan wrote in post #8812425
For making the focus area "finer" than the red box.
I've played around with it and it does help me achieve more critical focus.

From Canon's Digital Learning Centre:-

Spot AF mode:
The first totally new option with the EOS 7D. You can manually choose any single AF point (as outlined immediately above), but now actually reduce the size of that AF point. This allows you to read an even smaller area of the subject, and focus even more precisely on one particular element in a scene — such as the nearest eye in a portrait, or a precise part of a flower in a macro photograph.

MIME changed to 'text/html' | Content warning: script

I did some AF test today, taking photos of a runner, but when I tried to determine the AF mode and which points were used after the fact, it turned out that neither ZoomBrowser nor DPP shows anything different compared to what you get with the 40D with Servo AF and all points active.
I did change this several times during the session, but looking at what worked best after the fact seems not to be possible. Does that work for anyone else?

joove wrote in post #8809496
Press the AF pattern selection button (The rightmost button on top with the -+- icon). Once that is done, the AF points glow red in the VF and the M-Fn button will cycle through the various AF modes. The one you are looking for is "Spot AF" and will show up a small box inside the normal sized AF area/sensor box.

thats cool to know

mac_no1 wrote in post #8815214
Link to the above article :-
http://www.usa.canon.c​om …ArticleAct&arti​cleID=3049

Hope this helps.

That helps a lot, thanks

PicSniper wrote in post #8812459
When was the replacement for the 7D released?

Good catch