Lens Focal Length Converter
Convert lens focal lengths between camera sensor formats and calculate equivalent field of view
Conversion Results
Full Frame Equivalent
50 mm
Equivalent on Target Format
31.3 mm
Horizontal FOV
39.6°
Equivalent Aperture (DoF)
f/1.1
Hyperfocal Distance (f/8)
10.4 m
Sensor Format Reference
| Format | Crop Factor | Sensor Size (mm) |
|---|---|---|
| Full Frame (35mm) | 1x | 36 × 24 |
| APS-C (Canon) | 1.6x | 22.3 × 14.9 |
| APS-C (Nikon/Sony) | 1.5x | 23.6 × 15.6 |
| APS-C (Fujifilm) | 1.5x | 23.6 × 15.6 |
| Micro Four Thirds | 2x | 17.3 × 13 |
| Medium Format (44x33) | 0.79x | 43.8 × 32.9 |
| 1-inch Sensor | 2.7x | 13.2 × 8.8 |
| Super 35 (Cinema) | 1.4x | 24.89 × 18.66 |
Understanding Crop Factor
Crop factor is the ratio between a full-frame sensor (36×24mm) and a smaller sensor. It affects the field of view but not the actual focal length of the lens.
A 50mm lens on an APS-C camera (1.5x crop) gives the same field of view as a 75mm lens on full frame.
Equivalent aperture affects depth of field comparisons. A 50mm f/1.8 on APS-C has similar DoF to a 75mm f/2.7 on full frame.