The FH-869M is used when scanning mounted medium-format (Brownie) film. It can be used to scan up to two slides, one 6 ⋅ 4.5 or 6 ⋅ 6, the other 6 ⋅ 7, 6 ⋅ 8, or 6 ⋅ 9. Place the 6 ⋅ 4.5 or 6 ⋅ 6 slide at the front of the holder, the 6 ⋅ 7, 6 ⋅ 8, or 6 ⋅ 9 slide at the back. Insert the slides with the matte emulsion surface down (the shiny surface up). Slide the mounts into place between the guides, oriented to match the apertures in the holder. Stop when the slide comes into contact with the base of the guides.
Using the 