patrick04 Offline Upload & Sell: Off
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Hi again Ian! Yes, I have Lightroom 5 and I also have VueScan Professional. I'm still waiting for my new scanner to come in (delayed due to the snowstorm) so I'm just testing out the software with my old Epson 2480.
I should have given a little bit more information up front: The VueScan "Raw" files can be either TIFFs or DNGs, and I'm able to open the Raw TIFFs in Lightroom. The problem is that they are dark. I can fix this problem in LR by adjusting exposure, but I'm not sure if it's better to export to a normal TIFF first, which I can do, and which appears as the correct brightness/exposure. It's just an extra step that I'd like to avoid if it's not needed.
Based on what I've read on the internet, the Raw ViewScan files are really only intended to be re-edited within VueScan itself. They appear dark in other applications because they have a gamma of 1.0 whereas exported TIFF files have a gamma of 2.2. There are also some other differences.
TIFF is the standard VueScan Raw format but most of the information can also be wrapped up in a DNG. The exception (I think) is the infrared channel, which can't be wrapped in a DNG because there isn't anywhere to put it within the DNG standard. A full Raw VueScan file is a 64-bit TIFF (an "RGBi" file) which has three 16-bit color channels (48 bits total) and one infrared channel, which is what the "i" stands for. My understanding is that these RGBi files can be opened in other applications but the infrared channel is ignored (same thing if the Raw files are saved as DNG instead of TIFF, I think).
I think the best thing is probably to scan everything as a Raw TIFF and then convert all the images to standard TIFF files for editing LR. This is what I would like to do if I can find a way to do true batch processing. Unfortunately, so far I've only been able to do semi-batch processing in VueScan. It goes like this: I have to re-open ("re-scan") the images from the Raw files, which I can do as a batch process. But then I have to click the "Save" button for each image to save it as a standard TIFF file. I haven't been able to figure out how to re-scan and save all the files as standard TIFFs in one go. If you have any suggestions let me know. I'm probably just missing something in the VueScan software…
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