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How to sum up flash guide numbers?
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PostPosted: Wed Sep 17, 2014 8:31 am    Post subject: How to sum up flash guide numbers? Reply with quote
Hello.

Say I have flash with GN of 17. If I add another flash with GN17 next to it, what will be the output power? according to wiki, to double GN, you need to quadruple the flash power. this means, with two flashes I'll be getting 17+17/2=25 ?


PostPosted: Wed Sep 17, 2014 7:26 pm    Post subject: Reply with quote
Probably 1 stop extra. Try it in manual mode on digital
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