I also posted this in the Canon gear section. Sorry for the double post.
I have a T1i mated with a 550ex I bought second. whenever i try to bounce the flash off any surface, the auto-focus seems very soft. If the flash is directed straight at the subject, then the focus is crisp. When bouncing the flash and using manual focus i can get crisp focus.
I'm not an expert by any means, so wondering if it's user error or bad equipment. It doesn't seem to matter which lens i use (50 m2, 24-70L, 70-200L).
The position of the head of the flash shouldn't make a difference since the af assist light is on the body of the flash and not the main light. SOunds like the camera chose a different focus point for each of the images. Read the user manual for the 550 to learn more about the AF assist feature.
