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D300s vs D300 auto-ISO flash issue

gkaiseril

Chicago, US
6739 posts

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"RE: D300s vs D300 auto-ISO flash issue"

gkaiseril Gold Member Nikonian since 28th Oct 2005
Sun 18-Nov-12 11:21 PM

For flash photography it is best to set the ISO so the flash can properly compute the flash exposure. Your camera will compute the ambient light exposure and the flash will compute the need power for a proper flash exposure. Letting the ISO float may cause a different ISO being used for the computation of the ambient exposure and another value for the flash and when the camera takes the picture the ambient exposure ISO is used and the flash power level is for a different ISO value.

You might want to look at the Speedlight and Lighting forum and find a link to Russ MacDonalds blog.

George
My Nikonian Galleries

A topic tagged as in need of help D300s vs D300 auto-ISO flash issue [View all] , PIKBill Gold Member , Sun 18-Nov-12 08:24 PM
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