Quote:
Originally Posted by robski
Just out of interest have you noticed if these get triggered on pre-flash or not. I used to have one of these 25 yrs ago. heavens knows where it is now. I think they rely fairly high flash trigger voltage to get their power from. I bought a secondhand flash last year which has a 5 Volt trigger voltage which I currently use with a long PC lead. I'd often wondered if it would work with one of these optical slave triggers.
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I'll do some experiments when I get home, and let you know. There's nothing to stop me using the optical slave on my modern flash that only has a 5V trigger voltage. I can slave it from the pop-up on the camera, which also has a P-TTL preflash output if I set the camera to program mode.