I have a set of RAW photos that I’d like to generate a linear color MSPECs for/correct exposure/white balance. Each photo has an 18% gray standard in the photo. For some photos, the MSPEC is successfully created and looks normal. For most others, however, the program flashes through images that look like typical outputs to end up with entirely white channels. I’ve tried editing min/max values but this hasn’t solved the problem. Thoughts?
Weird behaviour! Odd that some work and others don’t. With the ones that work does everything seem correct (e.g. when you measure the grey standard it’s showing 18% reflectance in all channels).
Are you using automatic dark correction? If so try turning that off and see what happens (i.e. with only the 18% standard).
With the white images, you could also go “image > adjust Brightness/contrast” and select auto. Do the image values make sense/can you see the image, and is the 18% standard 18%?
Cheers,
Jolyon