Sunpak Auto 555 TTL Flash "canon 40d problems" Questions

Canon EOS 40D? I'd like to experiment with a Vivitar 285HV as an on-camera hot shoe flash. However, I'm reluctant to proceed because of conflicting reports about voltage compatibility with DSLRs. Some

...canon 40D off camera and getting inconsistent firing Using Energizer 2300 mAh fully charged batteries. Fires normal and consistent a few times then it does what it wants to. did you find a solution? ...

Cannot fire off cameta I cannot fire it off camera in my 40D with the PC contact or radio trigger If the Metz 44 is older then 3 years, than it's an software problem. I Had the same with the Metz 44AF

the 580EX is firing but images comes out completely dark it just started happening in a session around 2 hours ago........i put it on another camera the 40d still the same problem what can this be? ...

...Canon EOS 40d (aka Digital Rebel), there's no such thing as a Canon d40. If your Quantaray flash has the wrong brand dedication module on the bottom for your brand then it won't work properly (if at ...

...Canon 40D User's Manual. The Sunpak would be a bit doubtful on the hot shoe of a DSLR, as I've heard the maximum there is about 30V, and my Sunpak 3000 got to 32V while charging up. I use a Metz ...

I have a Cannon EOS 40D with a speedlite 430ex attached. The the mode of the flash is stuck in TTl. I want to be in ETTL. When I press the mode button on the flash it only toggles between TTL and M ...

canon 40D, what am i missing? canon 40D has the latest 1.1.1 firmware The lens you are using might not support the autozoom. Some Sigma, Tamron and other 3th party lenses are known for these problems.

...Canon 40D or to P mode the outcomes were not stable. the distance was around 2 to 4 meters and the manual setting was F5.6, 1/60 secs and the ISO was set to auto. According the shooting record, Canon ...

CANON EOS 40D. All the pictures are too dark. I can't take two pictures. Only switching off and on again. The camera has a "external flash" adjust and I can't use it because a warning message appear I