Question about Vivitar 285HV Flash
Personally, I would not try it. While the Canon has a protection system built into the camera, the trigger voltage on the Vivitar is pretty high. I have had good results using a 283 on a slave shoe, you will have to stop down more with the extra light
Posted on Jan 08, 2008
The 285HV is indeed the new incarnation of the 285 with a perfectly-safe-for-everyone 6V trigger voltage. No safe-sync required, just plug and go. Actually, I put a meter across the sync terminals on mine, and measured only 4.5V open-circuit, which leads to its own problem: some cheap optical slaves will fail to fire. So watch out for that.
Posted on Jan 28, 2008
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Posted on Jan 02, 2017
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