My scanning software, VueScan (www.hamrick.com), allows me to easily view and manipulate images in its prescan mode, the most important scanning stage. Here, you can select the area to scan. (Select more than you think you'll need so you'll have freedom later for cropping or straightening.) In prescan, you also can adjust density, color, sharpness, highlight and shadow clipping points, and contrast. Experiment with each and gauge its impact. Study the image's histograms to make sure highlights and shadows are within an acceptable range. At this point, if the outer edges of the subject appear too dark, I place supplemental lights around the Epson, and rescan.