Vivitar 550FD flash
(some say even lower)
That's for Canon users
Pentax have good protection in their DSLRs
Matt
(For gallery, tips and links)
https://www.pentaxuser.com/forum/viewtopic.php?t=526&highlight=flash+300v
Thank you for contacting Pentax USA, Inc.
Our technicians indicate the trigger voltage is 300V. This should be quite sufficient for most any flash unit.
Still, you need to watch your fingers!
(And I think Canon handles 5V )
Matt
(For gallery, tips and links)
I have an older style ring flash - looking forward to using it this weekend.
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14 posts
16 years
Rochdale