SHUTTER SPEED: Set to your camera meter’s recommendation, or 1-stop higher
I have been using NLP to convert many old MF and 35mm negatives. My question is regards the “best” camera settings, specifically, where to compromise if necessary for exposure?
The quote above is from the Best Practices Guide.
Does “1-stop higher” mean over exposure or under expose by 1 stop?
My light source is an Craftsman LED shop light that works very well, but its output is fixed. So, even though I try to shoot at my D810 lowest native ISO (64) that results in multi second exposure times. I am using my venerable Nikon 55/3.5 macro with Nikon extension tube and slide adapter. I am usually at 5.6
So, my question is where to compromise on settings for best exposure?
My workspace in on the second floor of an older home, so floor vibration can rarely happen. I try to shoot at 1/15 @ 5.6–would like f8-- and that requires a 400 ISO. But the question is: Is that best practices?
Instead of raising the ISO should I open up the F stop or slow the shutter speed or just keep shooting at the 400 ISO?