APS-C (Sony, Nikon, Fujifilm) sensor size
The APS-C size used by Sony, Nikon DX, Fujifilm X and Pentax. Its crop factor is often rounded to 1.5×; computed from the sensor diagonal it is slightly higher, so equivalent focal lengths come out a little longer than the rounded rule suggests.
Also called: APS-C, Nikon DX, Sony E APS-C, Fujifilm X, Pentax K APS-C
Dimensions
- Width × height
- 23.6 × 15.7 mm
- Diagonal
- 28.3 mm
- Sensor area
- 371 mm²
- Crop factor
- 1.53×
- Aspect ratio
- 3:2
Its area is -57% compared with full frame, and a lens mounted on it frames like a lens 1.53× longer on full frame.
- Full Frame 36 × 24 mm
- APS-C (Sony, Nikon, Fujifilm) 23.6 × 15.7 mm
Drawn to scale and centred on the lens axis.
Full-frame equivalent focal lengths on APS-C
What common lenses frame like when mounted on APS-C. Field of view is computed from this sensor's actual width and diagonal.
| Lens | Full-frame equivalent | Horizontal FoV | Diagonal FoV |
|---|---|---|---|
| 14 mm | 21.4 mm | 80.3° | 90.7° |
| 24 mm | 36.6 mm | 52.4° | 61.1° |
| 35 mm | 53.4 mm | 37.3° | 44.1° |
| 50 mm | 76.3 mm | 26.6° | 31.7° |
| 85 mm | 129.7 mm | 15.8° | 18.9° |
| 135 mm | 206.1 mm | 10.0° | 12.0° |
| 200 mm | 305.3 mm | 6.8° | 8.1° |
Lens needed on APS-C to match a full-frame view
Divide a full-frame focal length by 1.53× to find the lens that gives the same view on APS-C. Real lenses come in fixed focal lengths, so pick the nearest one available.
| Full-frame view | Focal length on APS-C |
|---|---|
| 14 mm on full frame | 9.2 mm |
| 24 mm on full frame | 15.7 mm |
| 35 mm on full frame | 22.9 mm |
| 50 mm on full frame | 32.8 mm |
| 85 mm on full frame | 55.7 mm |
| 135 mm on full frame | 88.4 mm |
| 200 mm on full frame | 131.0 mm |
Calculate with APS-C
Comparisons
Closest formats by size
- APS-C (Canon) 1.61× · -10% area
- APS-H 1.29× · +40% area
- Micro Four Thirds 2.00× · -39% area