JJC FDA-S2: Digitizing 120 film

I still use the JJC FDA-S1 to digitize 135 film. For 120 film, I use the JJC FDA-S2.

The FDA-S2 works well with the Pentax M 100/4 lens. However, I have to use a workaround to mount the Sony a7c (FF, 24MP).

The actual size of a 6x6 film frame is 56x56 mm. The Sony a7c's sensor size is about 36x24 mm, so the maximum usable area is 24x24 mm. Since 24/56 equals approximately 0.43, I use the Pentax M 100/4 (1:2, 0.5x magnification) without macro extension tubes. The maximum resolution is 16MP.

See also related notes:

• Kiev-6S: Budget medium format film camera (2025-06-11)
• JJC FDA-S1: Digitizing 135 film (2024-07-22)
• Pentax M 100/4 Macro (2024-01-01)

Image albums:

• Scanning