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03-07-2015, 07:54 AM   #1
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Help with a Canon flash

Hi all, is it safe to shot with a Canon speedlite 540EZ with a pentax K5 camera?, i've read that the trigger voltage is 3.75V, and the flash works in M mode (the camara is in x mode).
Thanks in advance!

03-07-2015, 08:19 AM   #2
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Yes. Trigger voltage is only an issue on older film era flashes. Anything under 12 volt should be fine. Some of the older flashes topped 100 volts.
03-07-2015, 08:41 AM   #3
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Yes Jatrax is right. Your flash will be safe to use. I've used flashes with a 20v connection on a K10D with no ill effects.
03-07-2015, 09:35 AM   #4
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Thanks! should i cover the extra pins with tape? Only the center one is needed for triggering the flash, and i don't know if those pins would make contact with the camara hot shoe.

03-07-2015, 03:11 PM   #5
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the contacts should be no issue, since the camera and the flash use a different protocoll anyway
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