The MA-20 (S) scans slides one at a time. Insert the slide smoothly with the emulsion surface down (shiny surface up) and the short side of the slide aperture toward the scanner. Stop when the slide contacts the rear of the film slot.
Compatible Slides
Slides scanned in the MA-20 (S) must have mounts between 1.0 and 3.2 mm thick and from 49 to 50.8 mm in width.