VueScan Exposure Lock Underexposed

[Digitizer]

@Mark_Segal

I would expose each negative such that the image data is all contained within the histogram without climbing the walls on either side, then use NLP for roll analysis on all the digitized, still negative images.

I had Roll Analysis reject to use the images of rolls because their exposure was too different. Therefore, and for camera scanning, individual exposures can disable RA. Whether that is the case with scanner scanned images, I cannot say, but there might be something in here:

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