I can't get my GR to do iso less than 320. I've gone thru every menu I can find. I'm on firmware 4. This issue cropped up a couple months ago, and I was hoping the new firmware would fix it - but it didn't. Answers?
Check that you do not have "Dynamic Range Correction" set to either auto or strong in the shooting menu - it limits the range of ISO values that can be selected and the minimum is ISO 320...
I don't think so, as the DNG files are still equally malleable. However, if you shoot in TAv mode and was banking on DRC to limit the maximum ISO, then you may find that the camera will go back to the max 25600 ISO since there is no upper limit from enabling the DRC.
