Using the Nikon LS Super Coolscan 4000 ED film scanner is easy. First, place your slide or 35mm filmstrip in the included film holders. Then, power on the scanner. You can adjust the Focus Control to get the sharpest image possible. Remember, this scanner has an optical resolution of 4,000 x 4,000 dpi and a 42 - bit color depth, so you'll get great - quality scans. Since this is a used item, it may have some marks or scuffs, but it shouldn't affect performance. As it's untested for functionality, test it on a few sample films first. To keep it in good condition, clean it gently with a soft, dry cloth. Avoid using any harsh chemicals on the scanner. Store it in a dry and cool place when not in use.