Question about Sigma EF-500 Super for Canon TTL Flash
Hello there. It seems that the Sigma EF-500 Super Flashgun has the E-TTL functionality for Canon SLRs. I bought it for use on a EOS100 film camera and it seemed to work well, but won't fire while fitted to my EOS7D. Can a EF-500 be used on a Canon EOS7D? Regards John
John, there is a difference in sync times between film and digital flash. It's taken the third party manufactures a little time to catch up so there is a lot of "film" flash units out there. I'm understanding that the Sigma flash doesn't fire at all which is pretty amazing I would have thought it would fire just not at the correct time. This flash isn't a total loss because it can be used wireless with a slave unit for fill or even a main light triggered from a mini transmitter on the camera hot shoe. Here is a link to an e-Bay auction to see what I'm saying.
I use this type of system for a location shoot, there are no wires and I can set up and balance my lighting to each set with no more dark backgrounds hope this was a help
Posted on Dec 01, 2010
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Posted on Jan 02, 2017
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