To BBF or to Shutter button that is the question? Poll

agedbriar wrote in post #17697148
Spot AF can indeed lead to inferior results and should be limited to situations described in the manual: "for pinpoint focusing of overlapping subjects such as an animal in a cage. Since Spot AF covers a very small area, focusing may be difficult during hand-held shooting or for a moving subject."

When I shot Portraits there are a lot of cases where the "normal" AF Point is much to large to be exactly on the eye. It often also covers part of the nose etc....

And I would call it a static subject. AI One Shot gives me a keeper rate around 90% Ai Servo maybe 20-30%

I found the exact opposite. 90-95% in focus with AI servo and single focus point not spot focus. Using a 135L. The opposite was true using the 85L, with that I used single focus and one shot for success due to the slow AF response of 85L
https://photography-on-the.net …/showthread.php​?t=1439650

gqllc007 wrote in post #17697201
I found the exact opposite. 90-95% in focus with AI servo and single focus point not spot focus. Using a 135L. The opposite was true using the 85L, with that I used single focus and one shot for success due to the slow AF response of 85L
https://photography-on-the.net …/showthread.php​?t=1439650

Yeah that could be true that the lens used has a huge influence on that. It would have been intereting though how the keeper rate with Ai One shot and the 135L would have been.

But most important is that you should feel comfortable the way you choose. That is what all these Custom options are made for.

The only thing is that there are many that think bbf is the holy grail (not here but in some blogs e.g) And that s not the case. Even with some of the best professionals you will find a lot that use shutter focus.

Both are simply options.