I've got a pretty basic question about flashes that can be used with the 10D. This'll be my first Canon digital, and I'm hoping to use my old EOS equipment until I decide what my priorities are accessory wise. I've got pretty basic glass and I'd like to spend my money on a new lens if I can avoid buying the flash for a few months.
I understand that the 550EX is the prefered flash, and that the the EX series flashes are compatible with the 10D in general. I still have a couple 430EZ's that I used to use with my EOS 630 bodies. Will they work with the 10D? Is it just a question of some functions being unavailable (TTL?), or are they completely incompatible?
Thanks,
Chris


