Originally posted by pathdoc I have a workflow set up for digitising black and white negs with a slide copier, flash and macro lens which ensures a degree of consistency from roll to roll, and I've accumulated some experience with tweaking them in Raw Therapee. I have not yet had an opportunity to apply the process to colour negatives; I'm hoping to find time to do that sometime this week.
You must have really perfect media.
I'm in the process of converting 40+ years of slides and negatives to digital.
I started off with a Epson flatbed scanner, but upon examination at 100% I discovered issues, sometimes many issues (*), with every image, so I spent many hours fixing my images using gimp / Photoshop.
I bought a Plustek scanner {controlled via Silverlight}, which did somewhat better, but by far my best results come from an elderly Nikon scanner I bought on eBay from a guy who refurbishes them. This scanner gets 16 values for each pixel {obtained by looking at the pixel from various angles, so parallax helps in distinguishing emulsion from other surface}. I have a hard time believing that a straight photo copy would work well ... but I've heard from others who do that.
(*) issues, in this case, includes scratches, tiny dust particles stuck to the media {I wipe clean before scanning}, perhaps some fungus, ...