Hi!
I’ve had some troubles with scanning a roll of Lomography Redscale recently.
I scan my negatives with a Nikon z6ii, a Nikkor 105mm f/2.8 macro and a Valoi Easy35.
Some of my negatives get some vignetting from the Valoi so I try to fix that with flat field correcting my images but half the images on this roll doesn’t want to convert to DNG and just stays as NEF files without flat field correction. Some images work fine while others don’t. I’m not sure what’s causing this.
Anyone know?
Hi there 
I have the same issues with the Valoi Easy 35. In fact, even with flat view correction, I still see a lot of vignetting in some cases like yours (more prominent on underexposed photos), and I plan to return it
One thing you can try is selecting only this image + your flat view shot and trying to correct it. You can also try moving the flat view image before and after this shot. It looks like this is a known bug in Lightroom, where it sometimes gets confused or can’t identify which shot is the flat view correction. Wish they would let us manually specify
Hi,
I usually only select one image at a time when i flat field correct because of another bug in Lightroom where if you would flat field correct an entire roll at once, sometimes the negative would become SUPER bright, like film base white bright.
I tried moving the flat field image around both before and after the image, and also in the beginning and end of the roll but to no success. 
I have rescanned this roll like 4 times, both sides of the film but nothing seems to help this issue lol. Only this roll btw. Could it be something with the redscale not working properly in Lightroom? Im not sure.
