Focales / APS-C
21mm en APS-C
Cadre comme 31,5mm en plein format : 58,5° en largeur, 40,8° en hauteur.
A 31,5mm éq.
| A 21mm en APS-C | |
|---|---|
| Focale | 21mm |
| Équivalent plein format | 31,5mm |
| Horizontal | 58,5° |
| Vertical | 40,8° |
| Diagonal | 67,8° |
| Capteur | APS-C 23,5 × 15,6 mm |
| Facteur de recadrage | ×1,5 |
| Format d’image | 3:2 |
Même cadrage sur d’autres formats
La focale qui correspond à 31,5mm équivalent plein format sur chaque taille de capteur (convention du facteur de recadrage, en diagonale).
| Capteur | Focale | Page la plus proche |
|---|---|---|
| Moyen format | 39,9mm | 38mm en Moyen format |
| Plein format | 31,5mm | 32mm en Plein format |
| APS-C (Canon) | 19,7mm | 21mm en APS-C (Canon) |
| Micro 4/3 | 15,8mm | 15mm en Micro 4/3 |
| 1 pouce | 11,7mm | — |
Focales fixes de 21mm pour APS-C (3)
| Objectif | Focale | Ouverture | Monture | Année |
|---|---|---|---|---|
| Samyang 21mm f/1.4 ED AS UMC CS (E) | 21mm | f/1,4 | Sony E | 2015 |
| Samyang 21mm f/1.4 ED AS UMC CS (MFT) | 21mm | f/1,4 | Micro Four Thirds | 2015 |
| Samyang 21mm f/1.4 ED AS UMC CS (X) | 21mm | f/1,4 | Fujifilm X | 2015 |
Zooms qui atteignent 21mm (53)
| Objectif | Focale | Ouverture | Monture | Année |
|---|---|---|---|---|
| Fujifilm XF 10-24mm f/4 R OIS | 10–24mm | f/4 | Fujifilm X | 2013 |
| Fujifilm XF 10-24mm f/4 R OIS WR | 10–24mm | f/4 | Fujifilm X | 2020 |
| Fujifilm XC 13-33mm f/3.5-6.3 OIS | 13–33mm | f/3,5–6,3 | Fujifilm X | 2025 |
| Fujifilm XC 15-45mm f/3.5-5.6 OIS PZ | 15–45mm | f/3,5–5,6 | Fujifilm X | 2018 |
| Fujifilm XF 16-50mm f/2.8-4.8 R LM WR | 16–50mm | f/2,8–4,8 | Fujifilm X | 2024 |
| Fujifilm XF 16-55mm f/2.8 R LM WR | 16–55mm | f/2,8 | Fujifilm X | 2015 |
| Fujifilm XF 16-55mm f/2.8 R LM WR II | 16–55mm | f/2,8 | Fujifilm X | 2024 |
| Fujifilm XF 16-80mm f/4 R OIS WR | 16–80mm | f/4 | Fujifilm X | 2019 |
| Fujifilm XC 16-50mm f/3.5-5.6 OIS II | 16–50mm | f/3,5–5,6 | Fujifilm X | 2015 |
| Fujifilm XF 18-55mm f/2.8-4 R LM OIS | 18–55mm | f/2,8–4 | Fujifilm X | 2012 |
| Fujifilm XF 18-120mm f/4 LM PZ WR | 18–120mm | f/4 | Fujifilm X | 2022 |
| Fujifilm XF 18-135mm f/3.5-5.6 R LM OIS WR | 18–135mm | f/3,5–5,6 | Fujifilm X | 2014 |
| Laowa 12-24mm f/5.6 Zoom Shift CF (E) | 12–24mm | f/5,6 | Sony E | 2024 |
| Laowa 12-24mm f/5.6 Zoom Shift CF (L) | 12–24mm | f/5,6 | L-Mount | 2024 |
| Laowa 12-24mm f/5.6 Zoom Shift CF (X) | 12–24mm | f/5,6 | Fujifilm X | 2024 |
| Laowa 12-24mm f/5.6 Zoom Shift CF (Z) | 12–24mm | f/5,6 | Nikon Z | 2024 |
| Leica Super-Vario-Elmar-TL 11-23mm f/3.5-4.5 ASPH. | 11–23mm | f/3,5–4,5 | L-Mount | 2014 |
| Leica Vario-Elmar-TL 18-56mm f/3.5-5.6 ASPH. | 18–56mm | f/3,5–5,6 | L-Mount | 2014 |
| Nikon Z DX 12-28mm f/3.5-5.6 PZ VR | 12–28mm | f/3,5–5,6 | Nikon Z | 2023 |
| Nikon Z DX 16-50mm f/3.5-6.3 VR | 16–50mm | f/3,5–6,3 | Nikon Z | 2019 |
| Nikon Z DX 16-50mm f/2.8 VR | 16–50mm | f/2,8 | Nikon Z | 2025 |
| Nikon Z DX 18-140mm f/3.5-6.3 VR | 18–140mm | f/3,5–6,3 | Nikon Z | 2021 |
| Sigma 16-300mm f/3.5-6.7 DC OS | C (E) | 16–300mm | f/3,5–6,7 | Sony E | 2025 |
| Sigma 17-40mm f/1.8 DC | A (E) | 17–40mm | f/1,8 | Sony E | 2025 |
| Sigma 18-50mm f/2.8 DC DN | C (E) | 18–50mm | f/2,8 | Sony E | 2021 |
| Sigma 16-300mm f/3.5-6.7 DC OS | C (L) | 16–300mm | f/3,5–6,7 | L-Mount | 2025 |
| Sigma 17-40mm f/1.8 DC | A (L) | 17–40mm | f/1,8 | L-Mount | 2025 |
| Sigma 18-50mm f/2.8 DC DN | C (L) | 18–50mm | f/2,8 | L-Mount | 2021 |
| Sigma 16-300mm f/3.5-6.7 DC OS | C (X) | 16–300mm | f/3,5–6,7 | Fujifilm X | 2025 |
| Sigma 17-40mm f/1.8 DC | A (X) | 17–40mm | f/1,8 | Fujifilm X | 2025 |
| Sigma 18-50mm f/2.8 DC DN | C (X) | 18–50mm | f/2,8 | Fujifilm X | 2022 |
| Sigma 16-300mm f/3.5-6.7 DC OS | C (Z) | 16–300mm | f/3,5–6,7 | Nikon Z | 2026 |
| Sony E PZ 16-50mm f/3.5-5.6 OSS II | 16–50mm | f/3,5–5,6 | Sony E | 2024 |
| Sony E PZ 16-50mm f/3.5-5.6 OSS | 16–50mm | f/3,5–5,6 | Sony E | 2012 |
| Sony E 16-55mm f/2.8 G | 16–55mm | f/2,8 | Sony E | 2019 |
| Sony Vario-Tessar T* E 16-70mm f/4 ZA OSS | 16–70mm | f/4 | Sony E | 2013 |
| Sony E PZ 18-105mm f/4 G OSS | 18–105mm | f/4 | Sony E | 2013 |
| Sony E PZ 18-110mm f/4 G OSS | 18–110mm | f/4 | Sony E | 2016 |
| Sony E 18-135mm f/3.5-5.6 OSS | 18–135mm | f/3,5–5,6 | Sony E | 2018 |
| Sony E 18-55mm f/3.5-5.6 OSS | 18–55mm | f/3,5–5,6 | Sony E | 2010 |
| Sony E 18-200mm f/3.5-6.3 OSS | 18–200mm | f/3,5–6,3 | Sony E | 2010 |
| Sony E 18-200mm f/3.5-6.3 OSS LE | 18–200mm | f/3,5–6,3 | Sony E | 2012 |
| Sony E PZ 18-200mm f/3.5-6.3 OSS | 18–200mm | f/3,5–6,3 | Sony E | 2012 |
| Tamron 16-50mm f/2.8 A (E) | 16–50mm | f/2,8 | Sony E | 2026 |
| Tamron 17-70mm f/2.8 Di III-A VC RXD (E) | 17–70mm | f/2,8 | Sony E | 2020 |
| Tamron 18-200mm f/3.5-6.3 Di III VC (E) | 18–200mm | f/3,5–6,3 | Sony E | 2011 |
| Tamron 18-300mm f/3.5-6.3 Di III-A VC VXD (E) | 18–300mm | f/3,5–6,3 | Sony E | 2021 |
| Tamron 16-50mm f/2.8 A (X) | 16–50mm | f/2,8 | Fujifilm X | 2026 |
| Tamron 17-70mm f/2.8 Di III-A VC RXD (X) | 17–70mm | f/2,8 | Fujifilm X | 2022 |
| Tamron 18-300mm f/3.5-6.3 Di III-A VC VXD (X) | 18–300mm | f/3,5–6,3 | Fujifilm X | 2021 |
| Tamron 16-50mm f/2.8 A (Z) | 16–50mm | f/2,8 | Nikon Z | 2026 |
| Tamron 17-70mm f/2.8 Di III-A VC RXD (Z) | 17–70mm | f/2,8 | Nikon Z | 2026 |
| Tamron 18-300mm f/3.5-6.3 Di III-A VC VXD (Z) | 18–300mm | f/3,5–6,3 | Nikon Z | 2025 |