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Anonymous
>>149721 The flash circuitry rated for low voltage can sometimes survive a few high-voltage bursts before burning out. However, Nikons seem to be safe to use with old flashes.
From what I've heard, the maximum flash trigger voltage is: - for Nikon DSLRs = up to 250V; there are a couple reports of ruined flash circuitry after using really shitty chinese flashes that give off more than 300V. - for Canon DSLRs = 6V or less, so no old flashes without a voltage adapter! Looks like even some badly designed low-voltage flashes can be harmful. - for Pentax DSLRs = up to 12V or 30V according to different sources; doesn't matter anyway, as flashes are either below 12V or over 150V. - for Sony DSLRs = up to 6V, but old flashes won't fit into Sony's hot shoe anyway. - for Olympus DSLRs (and probably Panasonic 4/3 ones too, as they share most components) = up to 300V or more, no one ever managed to kill those.
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