Nikon SB800/900 real GN value ...

Started 5 months ago | Discussions thread
elliotn
Senior MemberPosts: 1,038
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Re: Nikon SB800/900 real GN value ...
In reply to snellius, 5 months ago

snellius wrote:

How did you measure the distance? At 1 meter from the front of the flash, or the shooting distance of 1 m (distance to the film or sensor). At 1 meter, this can be a big difference. At 5 meters it does not matter anymore.

Measuring 1 metre from the front of the flash, rather than the film plane, makes a tenth of a stop difference.

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