Focal lengths / APS-C
9mm on APS-C
Frames like 13.5mm on full frame: 105.1° across, 81.8° top to bottom.
A 13.5mm eq.
| A 9mm on APS-C | |
|---|---|
| Focal length | 9mm |
| Full-frame equivalent | 13.5mm |
| Horizontal | 105.1° |
| Vertical | 81.8° |
| Diagonal | 114.9° |
| Sensor | APS-C 23.5 × 15.6 mm |
| Crop factor | ×1.5 |
| Aspect ratio | 3:2 |
Same framing on other formats
The focal length that matches 13.5mm full-frame equivalent on each sensor size (crop-factor convention, diagonal).
| Sensor | Focal length | Closest page |
|---|---|---|
| Medium format | 17.1mm | 17mm on Medium format |
| Full frame | 13.5mm | 14mm on Full frame |
| APS-C (Canon) | 8.4mm | 9mm on APS-C (Canon) |
| Micro Four Thirds | 6.8mm | 6mm on Micro Four Thirds |
| 1-inch | 5mm | — |
Primes at 9mm for APS-C (8)
| Lens | Focal | Aperture | Mount | Year |
|---|---|---|---|---|
| Laowa 9mm f/2.8 Zero-D (E) | 9mm | f/2.8 | Sony E | 2018 |
| Laowa 9mm f/2.8 Zero-D (L) | 9mm | f/2.8 | L-Mount | 2018 |
| Laowa 9mm f/2.8 Zero-D (MFT) | 9mm | f/2.8 | Micro Four Thirds | 2019 |
| Laowa 9mm f/2.8 Zero-D (X) | 9mm | f/2.8 | Fujifilm X | 2018 |
| Laowa 9mm f/2.8 Zero-D (Z) | 9mm | f/2.8 | Nikon Z | 2018 |
| Viltrox AF 9mm f/2.8 Air (E) | 9mm | f/2.8 | Sony E | 2025 |
| Viltrox AF 9mm f/2.8 Air (X) | 9mm | f/2.8 | Fujifilm X | 2025 |
| Viltrox AF 9mm f/2.8 Air (Z) | 9mm | f/2.8 | Nikon Z | 2025 |
Zooms that reach 9mm (4)
| Lens | Focal | Aperture | Mount | Year |
|---|---|---|---|---|
| Fujifilm XF 8-16mm f/2.8 R LM WR | 8–16mm | f/2.8 | Fujifilm X | 2018 |
| Laowa 8-16mm f/3.5-5 Zoom CF (E) | 8–16mm | f/3.5–5 | Sony E | 2023 |
| Laowa 8-16mm f/3.5-5 Zoom CF (X) | 8–16mm | f/3.5–5 | Fujifilm X | 2023 |
| Laowa 8-16mm f/3.5-5 Zoom CF (Z) | 8–16mm | f/3.5–5 | Nikon Z | 2023 |