by ʇolɐǝz ǝɥʇ qoq

Submit your Photo
Hall of Fame

Please participate in Meta
and help us grow.

Photography Stack Exchange is a question and answer site for professional, enthusiast and amateur photographers. Join them; it only takes a minute:

Sign up
Here's how it works:
  1. Anybody can ask a question
  2. Anybody can answer
  3. The best answers are voted up and rise to the top

I'm trying to sync my XTi to a 550ex speedlite with PC cord. I'm shopping on and can only find two adapters that might do the job; Hama or SC2. Will either of these do the job? If not can you suggest something (preferably something that's available in Europe and cheap-ish)

The hama one doesn't look like it has any electrical connections on top so I' sceptical about it.

The 550ex has a 3 pin socket on the side, is there a PC adapter for that?

share|improve this question

The three pin socket on the side of the 580ex is the external power socket, not a sync socket. The Hama product you linked to does look like it has no data connection to the flash, but this one does. I've used it on a 430 EX II to connect to Elinchrom Skyport radio triggers successfully. It worked well, but mounting can be an issue depending on where/how you are holding the flash, as it has no tripod style screw fitting in the bottom of it. I solved that issue by mounting it into a Canon OC-E3 cable which then mounted on a tripod/lightstand easily.

share|improve this answer

If you want to keep using eTTL, (where the flash talks to the camera as it fires) you need a Canon cord, or one designed specifically for Canon eTTL. Google "Canon OC-E3 EOS Dedicated TTL Off-Camera Shoe Cord" and you will find them. Or look at

The SC2 seems to be a Nikon-style cord, that won't give you eTTL at all. Its for their CLS system.

share|improve this answer
OC-e3 clones seem to all be vey short (<5feet), I need something 15ft+. Is there an engineering constraint which doesn't allow for longer ettl cords? – Ken Nov 24 '12 at 20:48
Not at all. Just talk to the folks at – Pat Farrell Nov 24 '12 at 22:56

Your Answer


By posting your answer, you agree to the privacy policy and terms of service.

Not the answer you're looking for? Browse other questions tagged or ask your own question.