ARTHUR MORRIS ON USING AI SERVO AND C.FN-04 ( * FOCUS LOCK)

Just switched over on my 30D - HOLY CARP!!! Love it.

HOSTED PHOTO
please log in to view hosted photos in full size.

* focus ftw. First thing I did when I got my 50D. Focussing with the shutter button feels like I'm shooting a P&S now.

yb98 wrote in post #7196750
Is there any advantage to use CF4-1 rather than CF4-3 ? Any concret example ? Thanks.

CFn 4-1 does lock AE with half press of the shutter, CFn 4-3 doesn't.

I use 4-3 on my 1D and 1D2.

CFn 4-1 was the only option on my Eos 1n, and I found it caused me to "mash" the shutter, since I did *not* want to lock AE when using Av mode. (Very, very bad technique )

The 1D series (and all other camera's except the 10D and some newer models (after 30D I think) will still lock AE when AF is locked, whatever the CFn says, when using Av, Evaluative and One Shot AF, for as long as the * button is pressed.

AiServo, or any other metering mode then Evaluative doesn't exhibit this inconsistency.