Hi Roy,
the customized AF function on the rear
* button is something I've adopted since a couple of years (I just found the setting on the used camera I bought
) .. just one thing: with my 20D (and previously on the 350D) in AIServo mode, I used to AF on the subject with the shutter button, press and
keep pressed the rear
* button, recompose the shot and shoot, then let the button .. in this way I was able to stop the focus on the subject/part of it I wanted ...
Is this dissimilar to what you're actually using? If not, what C-Fn setting does this correspond to in your camera? C.Fn-04 1,2,3? I think my setting was #2 (AF/AF lock, no AE lock), not sure ... in any case, is it necessary to keep the buttom pressed, or just press it once, recompose and shoot?
EDIT: one more thought, please correct me if I get it wrong. If you remove
completely AF from the shutter button, then you're always obliged to use your thumb to get your camera AFing ... this can be quite convenient for stationary subjects, but what about BIFs? I wouldn't want to use two fingers when the opportunity arises and I have to pan to follow a bird crossing my field of view ... in this situation, I rarely find myself in the position to recompose the shot, I'm already glad enough if I manage to keep the focus point on the subject
, so I prefer the shutter button to do the AF thing and shoot
Thank you,
Max