23mm APS-C vs 35mm Full frame
23mm APS-C and 35mm Full frame frame practically the same.
A 23mm APS-C
B 35mm Full frame
The numbers
| A 23mm on APS-C | B 35mm on Full frame | |
|---|---|---|
| Focal length | 23mm | 35mm |
| Full-frame equivalent | 34.5mm | 35mm |
| Horizontal | 54.1° | 54.4° |
| Vertical | 37.5° | 37.8° |
| Diagonal | 63° | 63.4° |
| Sensor | APS-C 23.5 × 15.6 mm | Full frame 36 × 24 mm |
| Crop factor | ×1.5 | ×1 |
| Aspect ratio | 3:2 | 3:2 |
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