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When scanning gloss stock that is warped it is hard to get a good contact with the scanner glass. In this example the warped gloss stock produced a rainbow type of defect while scanning. Weighting the scanner lid can help get good contact with the original. Foam backer board must be used under the scanner lid as the flatbed scanner lid provides poor contact. 18 pounds of weight was used here. If you go above 22 - 24 pounds on the scanner lid, an Epson V600 scanner may break. Every scanner is different; you check its weight limits out for yourself. Unweighted scan of RPPC Crop of unweighted scan defect area. Crop of weighted scan defect area. Full report: Scan With Rainbow Defects Weighted / Unweighted Comparisons D. D. Teoli Jr. A. C. : D. D. Teoli Jr. A. C. : Free Download, Borrow, and Streaming : Internet Archive <><><><> Daniel D. Teoli Jr. Archival Collection Daniel D. Teoli Jr. Small Gauge Film Archive Daniel D. Teoli Jr. Advertising Archive Daniel D. Teoli Jr. VHS Video Archive Daniel D. Teoli Jr. Popular Culture Archive Daniel D. Teoli Jr. Audio Archive Daniel D. Teoli Jr. Social Documentary Photography

Sheetfed scanners are prone to moiré patterns when scanning halftones at lower res. A flatbed scanner does better if you are using lower res and have halftone material. Click to view properly. Epson FastFoto 300dpi scan Epson FastFoto 600 dpi scan If I had kept the original, I'd go the distance and send in flatbed scans. But I didn't know I'd be doing this post or test. I just happened upon the scans and the 300dpi was supposed to be trashed. I don't keep many things nowadays after they are scanned. Either that are resold on eBay if valuable or trashed, which happens to most of the material. In 2022 I downsized the storage lockers and decided to go all digital. At least that is my goal. I always liked to keep everything, but rent is just too high nowadays. If you are going to dispose of material, always get whatever you need from it as you can't go back! <><><><> Daniel D. Teoli Jr. Archival Collection Daniel D. Teoli Jr. Small Gauge Film Archive Daniel D. Teoli Jr. Advertising Archive Daniel D. Teoli Jr. VHS Video Archive Daniel D. Teoli Jr. Popular Culture Archive Daniel D. Teoli Jr. Audio Archive Daniel D. Teoli Jr. Social Documentary Photography