MarkBarbieri
Semi-retired
- Joined
- Aug 20, 2006
- Messages
- 6,171
I have to stress that for owners of newer Canon cameras (including the Rebel XT), that's a very misleading statement. The 220EX is not E-TTL 2 compatible. Using one on a Rebel XT, 20D, or other E-TTL 2 camera will cause you to lose metering capabilities that the camera is capable of. In fact, for metering it is worse than the built-in flash. So it is compatible in the sense that the flash will work, but not compatible in the sense that it doesn't work with the newer metering capabilities Canon provides and that even Sigma supports with it's newer flashes.
WRONG! I was told in a PM and have since verified on Canon's website that any Canon EX flash will support E-TTL2, even those like the 220 and 420 that were made prior to the indrocution of E-TTL2. That's because the processing is done in the camera body and none of the communications with the flash have changed. I apologize for my error and to anyone that I have mislead.