Microtek ScanMaker IIG User Manual page 74

The scanning frame of the film depends on the film holder and the
mount to be used. Below is a table of scanning frames for the
various film holders and mounts.
Film holder and mount
Standard film holder
4" x 5" (without film mount)
Film mount #1 (60 mm x 60 mm)
Film mount #2 (60 mm x 70 mm)
Film mount #3 (35 mm x 35 mm)
Glass film holder
5" x 5"
2-44 Microtek User's Guide for Windows
Scanning frame
3.68" x 4.44"
55 mm x 55 mm
55 mm x 68 mm
34 mm x 34 mm
5" x 5"