Mark Segal and I did an extensive study on how to process DSLR B&W negatives, Color negatives and slides using two different workflows. This is due to the "complexity" in removing the orange mask and correcting the individual RGB channel gamma, which is "unique" to each film type and emulsion batch variation. While it is possible to process DSLR B&W negative and Color slide images using only LR the same is not true for color negatives. The DSLR raw image file is NOT compatible with most dedicated scanner software due to differences in the scanner and DSLR profiles. I do scannerless capture using a DSLR camera and use PS for initial processing with LR for final Toning and cataloging. Set the Tone Curve as explained at the below link and then save it as a Develop preset with just Tone Curve selected. Self-evidently the need for a "Negative" button is niche or after all these years, we'd have heard a lot more about it, from a lot more people - wouldn't we?Īs explained already by john beardsworth there is no need for a "button" to invert the image data. From my experience this provides a very usable TIFF Export and B&W images should be adjusted the same way. Raising the Exposure by +1.0 EV removes the clipping and centers the histogram data. The below camera raw color negative film image is about 1.0 EV underexposed and shows blue channel clipping shadow clipping. I also manually set my flash White Balance in LR using the White Balance Selector tool on a test shot with no film. Highlight clipping in the raw data should be avoided so you're better off slightly under-exposing if unsure of the proper exposure. LR's image adaptive controls make it impossible to determine the actual raw data values so I use RawDigger to determine my flash manual exposure setting. LR's PV2012 image adaptive controls aren't the best choice for processing camera raw film images, but as long as there is no clipping in the Histogram highlights or shadows indicators then the TIFF file will contain the full dynamic range of the raw image data. If the raw image shows highlight or shadow clipping in the Histogram those pixels will be unrecoverable in the TIFF file.
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