25mm Micro Four Thirds vs 50mm Full frame
25mm Micro Four Thirds and 50mm Full frame frame practically the same. The shapes differ: 25mm Micro Four Thirds is 4:3, 50mm Full frame is 3:2.
A 25mm Micro Four Thirds
B 50mm Full frame
The numbers
| A 25mm on Micro Four Thirds | B 50mm on Full frame | |
|---|---|---|
| Focal length | 25mm | 50mm |
| Full-frame equivalent | 50mm | 50mm |
| Horizontal | 38.2° | 39.6° |
| Vertical | 29.1° | 27° |
| Diagonal | 46.8° | 46.8° |
| Sensor | Micro Four Thirds 17.3 × 13 mm | Full frame 36 × 24 mm |
| Crop factor | ×2 | ×1 |
| Aspect ratio | 4:3 | 3:2 |
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