Focal lengths / Full frame
400mm on Full frame
Frames like 400mm on full frame: 5.2° across, 3.4° top to bottom.
A 400mm eq.
| A 400mm on Full frame | |
|---|---|
| Focal length | 400mm |
| Full-frame equivalent | 400mm |
| Horizontal | 5.2° |
| Vertical | 3.4° |
| Diagonal | 6.2° |
| Sensor | Full frame 36 × 24 mm |
| Crop factor | ×1 |
| Aspect ratio | 3:2 |
Same framing on other formats
The focal length that matches 400mm full-frame equivalent on each sensor size (crop-factor convention, diagonal).
| Sensor | Focal length | Closest page |
|---|---|---|
| Medium format | 506.3mm | 500mm on Medium format |
| APS-C | 266.7mm | — |
| APS-C (Canon) | 250mm | — |
| Micro Four Thirds | 200mm | 200mm on Micro Four Thirds |
| 1-inch | 148.1mm | — |
Primes at 400mm for Full frame (5)
| Lens | Focal | Aperture | Mount | Year |
|---|---|---|---|---|
| Canon RF 400mm f/2.8L IS USM | 400mm | f/2.8 | Canon RF | 2021 |
| Nikon Z 400mm f/2.8 TC VR S | 400mm | f/2.8 | Nikon Z | 2022 |
| Nikon Z 400mm f/4.5 VR S | 400mm | f/4.5 | Nikon Z | 2022 |
| Sony FE 400mm f/2.8 GM OSS | 400mm | f/2.8 | Sony E | 2018 |
| Sony FE 400mm f/4.5 GM OSS | 400mm | f/4.5 | Sony E | 2026 |
Zooms that reach 400mm (22)
| Lens | Focal | Aperture | Mount | Year |
|---|---|---|---|---|
| Canon RF 100-400mm f/5.6-8 IS USM | 100–400mm | f/5.6–8 | Canon RF | 2021 |
| Canon RF 100-500mm f/4.5-7.1L IS USM | 100–500mm | f/4.5–7.1 | Canon RF | 2020 |
| Canon RF 200-800mm f/6.3-9 IS USM | 200–800mm | f/6.3–9 | Canon RF | 2023 |
| Leica Vario-Elmar-SL 100-400mm f/5-6.3 | 100–400mm | f/5–6.3 | L-Mount | 2023 |
| Nikon Z 28-400mm f/4-8 VR | 28–400mm | f/4–8 | Nikon Z | 2024 |
| Nikon Z 100-400mm f/4.5-5.6 VR S | 100–400mm | f/4.5–5.6 | Nikon Z | 2021 |
| Nikon Z 180-600mm f/5.6-6.3 VR | 180–600mm | f/5.6–6.3 | Nikon Z | 2023 |
| Panasonic Lumix S 100-500mm f/5-7.1 O.I.S. | 100–500mm | f/5–7.1 | L-Mount | 2025 |
| Sigma 60-600mm f/4.5-6.3 DG DN OS | S (L) | 60–600mm | f/4.5–6.3 | L-Mount | 2023 |
| Sigma 100-400mm f/5-6.3 DG DN OS | C (L) | 100–400mm | f/5–6.3 | L-Mount | 2020 |
| Sigma 150-600mm f/5-6.3 DG DN OS | S (L) | 150–600mm | f/5–6.3 | L-Mount | 2021 |
| Sigma 300-600mm f/4 DG OS | S (L) | 300–600mm | f/4 | L-Mount | 2025 |
| Sony FE 100-400mm f/4.5-5.6 GM OSS | 100–400mm | f/4.5–5.6 | Sony E | 2017 |
| Sony FE 100-400mm f/4.5 GM OSS | 100–400mm | f/4.5 | Sony E | 2026 |
| Sony FE 100-400mm f/5.6-8 OSS | 100–400mm | f/5.6–8 | Sony E | 2026 |
| Sony FE 200-600mm f/5.6-6.3 G OSS | 200–600mm | f/5.6–6.3 | Sony E | 2019 |
| Sony FE 400-800mm f/6.3-8 G OSS | 400–800mm | f/6.3–8 | Sony E | 2025 |
| Tamron 50-400mm f/4.5-6.3 Di III VC VXD (E) | 50–400mm | f/4.5–6.3 | Sony E | 2022 |
| Tamron 150-500mm f/5-6.7 Di III VC VXD (E) | 150–500mm | f/5–6.7 | Sony E | 2021 |
| Tamron 150-500mm f/5-6.7 Di III VC VXD (X) | 150–500mm | f/5–6.7 | Fujifilm X | 2022 |
| Tamron 50-400mm f/4.5-6.3 Di III VC VXD (Z) | 50–400mm | f/4.5–6.3 | Nikon Z | 2024 |
| Tamron 150-500mm f/5-6.7 Di III VC VXD (Z) | 150–500mm | f/5–6.7 | Nikon Z | 2023 |