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Auto ISO with a Hot-Shoe Mounted Flash

Leonard62

Hatboro, Pa, US
3839 posts

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"RE: Auto ISO with a Hot-Shoe Mounted Flash"

Leonard62 Gold Member Awarded for excellent contributions and sharing his in-depth knowledge and experience with the community, especially of Nikkor Lenses Writer Ribbon awarded for his contributions to the Nikonians Resources articles library Nikonian since 15th Mar 2009
Tue 19-Jun-12 02:07 PM

The bottom line is don't use Auto ISO with flash of any kind with the D5100 or D3200 for that matter.

The camera Auto ISO will raise the ISO value to match the darkened ambient light in the room. In the case of setting the high ISO point to 3200 or 6400 with the built in flash it could raise the ISO up to that point.

I just set my D5100 to Auto ISO with a high point of ISO 3200. I then took two identical photos.
With the built in flash ISO jumped to 3200. I had the default ISO set at 200.
With the SB400 flash mounted, Auto ISO set the ISO to 800. So the bloggers 4X number seems correct with the SB400.

Again. Don't use Auto ISO with flash.

Len

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A general, generic topic Auto ISO with a Hot-Shoe Mounted Flash [View all] , jammike , Tue 19-Jun-12 01:36 PM
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