84×56 mm
Dimensions
0.43×
Crop factor
4704 mm²
Area (544% of FF)
+2.4
Stops of light vs full frame
3:2
Aspect ratio
70.0 µm
Circle of confusion
About 6 × 9 cm film#
Large 120-roll frame with the same 3:2 shape as 35 mm.
Typical cameras: Fujica GW690, folding cameras.
Compared to other formats#
Lens needed for the same framing#
| Full-frame focal length | Equivalent on 6 × 9 cm film | Horizontal angle |
|---|---|---|
| 14 mm | 32.7 mm | 104.3° |
| 24 mm | 56.0 mm | 73.7° |
| 35 mm | 81.7 mm | 54.4° |
| 50 mm | 116.7 mm | 39.6° |
| 85 mm | 198.3 mm | 23.9° |
| 135 mm | 315.0 mm | 15.2° |
| 200 mm | 466.7 mm | 10.3° |
Equivalent aperture for depth of field#
| On 6 × 9 cm film | Full-frame equivalent |
|---|---|
| f/1.4 | f/0.6 |
| f/2 | f/0.9 |
| f/2.8 | f/1.2 |
| f/4 | f/1.7 |
| f/5.6 | f/2.4 |
| f/8 | f/3.4 |
Frequently asked questions#
What is the crop factor of 6 × 9 cm film?
0.43× (diagonal 101.0 mm vs 43.3 mm for full frame).
How big is a 6 × 9 cm film sensor?
84 × 56 mm, an area of 4704 mm².
Is 6 × 9 cm film good in low light?
At the same exposure it gathers 2.4 stops more total light than full frame, so expect roughly that much less visible noise at equal print size. Modern processing narrows but doesn't erase the gap.
Last updated October 03, 2026 · How we calculate · Sources