D850 dark frames

Started 4 weeks ago | Discussions thread
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Warren Cook
Warren Cook Regular Member • Posts: 111
D850 dark frames

In a day of shooting there may come a sequence where the frames appear dark. In looking at the data, I find that there is no data for f-stop . And when I open the raw images I can find a very dark image as if the lens had been closed down. This has happened on multiple lenses and they are Nikon f2.8 24 - 70 and 28 - 70 used with no problem on other Nikons. Any ideas?

This is the image converted to a jpg from raw and opened using Bridge.

Also, here is what the data usually shows, and what this image showed:

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F100, F4, F5,,Df, D800E,D3s,D500, D5. D850, Hasselblad 500 on a shelf
Archival Hasselblad 500 CMs
Fugi Frontier

 Warren Cook's gear list:Warren Cook's gear list
Nikon D3S Nikon D610 Nikon Df Nikon D5 Nikon D850 +2 more
Nikon D850
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