Nikon SB800/900 real GN value ...

Started Apr 2, 2014 | Discussions thread
elliotn Senior Member • Posts: 1,713
Re: Nikon SB800/900 real GN value ...

Arnaud M wrote:

Ok, I made ​​a mistake in my first post. The guide number does not change with 5 battery and remains at 22.9.

No one else has made a test with a flash meter ?

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I just tried with an SB80DX (same GN as SB800?) and a Sekonic light meter.

At 35mm I read f22.7

At 105mm I read f32.4

I can't see much to be concerned about.

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