3.4 Scan dark or night picturesWhen you need to scan dark or night pictures, be sure to insert your photo intothe white plastic sheath to avoid an incomplete scanned image. However, usingthe white plastic sheath will disable the auto crop (automatic crop your imageaccording to your photo size) and deskew (auto straighten) functions. Thismeans though you have completed scanning your photo, your image may lookslightly skew if you have not placed the photo straight in the scanner..The scanned image using white plastic sheath3-5