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-   -   ISO changing by itself (https://forums.steves-digicams.com/nikon-dslr-57/iso-changing-itself-140340/)

ryssmarr Apr 24, 2008 4:09 PM

I have a d40x and though I'm shooting on manual and setting the iso to ISO 100 when I check my exif data the iso is not set on 100 it changes by itself sometimes it 125 and sometimes its 250 and so on. I'm pretty sure that's not supposed to happen on manual mode. I DO NOT HAVE THE ISO SET ON AUTO. help

Mark1616 Apr 24, 2008 7:17 PM

Sorry don't have an answer but just moved this to the Nikon dSLR section from the point and shot Nikon section.

Firedog28 Apr 24, 2008 8:27 PM

If it's anything like the D300, manual settings only locks in the aperture and shutter speed...The ISO, having been set to "auto ISO", will continue to vary according to the situation. There should be a menu structure to disable the auto ISO, and then you REALLY get to be in control...

ryssmarr Apr 24, 2008 9:11 PM

Thanks I think that may have done it. In the menus it was set at auto iso on. I appreciate it.


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