1-inch sensor size
The 1-inch type sensor used in premium compacts and some drones is far smaller than the name suggests. The name is a legacy video-tube convention; no dimension of the sensor measures one inch.
Also called: 1", 1-inch type, Nikon CX
Dimensions
- Width × height
- 13.2 × 8.8 mm
- Diagonal
- 15.9 mm
- Sensor area
- 116 mm²
- Crop factor
- 2.73×
- Aspect ratio
- 3:2
Its area is -87% compared with full frame, and a lens mounted on it frames like a lens 2.73× longer on full frame.
- Full Frame 36 × 24 mm
- 1-inch 13.2 × 8.8 mm
Drawn to scale and centred on the lens axis.
Full-frame equivalent focal lengths on 1-inch
What common lenses frame like when mounted on 1-inch. Field of view is computed from this sensor's actual width and diagonal.
| Lens | Full-frame equivalent | Horizontal FoV | Diagonal FoV |
|---|---|---|---|
| 14 mm | 38.2 mm | 50.5° | 59.1° |
| 24 mm | 65.5 mm | 30.8° | 36.6° |
| 35 mm | 95.5 mm | 21.4° | 25.5° |
| 50 mm | 136.4 mm | 15.0° | 18.0° |
| 85 mm | 231.8 mm | 8.9° | 10.7° |
| 135 mm | 368.2 mm | 5.6° | 6.7° |
| 200 mm | 545.5 mm | 3.8° | 4.5° |
Lens needed on 1-inch to match a full-frame view
Divide a full-frame focal length by 2.73× to find the lens that gives the same view on 1-inch. Real lenses come in fixed focal lengths, so pick the nearest one available.
| Full-frame view | Focal length on 1-inch |
|---|---|
| 14 mm on full frame | 5.1 mm |
| 24 mm on full frame | 8.8 mm |
| 35 mm on full frame | 12.8 mm |
| 50 mm on full frame | 18.3 mm |
| 85 mm on full frame | 31.2 mm |
| 135 mm on full frame | 49.5 mm |
| 200 mm on full frame | 73.3 mm |
Calculate with 1-inch
Comparisons
Closest formats by size
- Micro Four Thirds 2.00× · +94% area
- APS-C (Canon) 1.61× · +186% area
- APS-C (Sony, Nikon, Fujifilm) 1.53× · +219% area