Focal lengths / APS-C
33mm on APS-C
Frames like 49.5mm on full frame: 39.2° across, 26.6° top to bottom.
A 49.5mm eq.
| A 33mm on APS-C | |
|---|---|
| Focal length | 33mm |
| Full-frame equivalent | 49.5mm |
| Horizontal | 39.2° |
| Vertical | 26.6° |
| Diagonal | 46.3° |
| 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 49.5mm full-frame equivalent on each sensor size (crop-factor convention, diagonal).
| Sensor | Focal length | Closest page |
|---|---|---|
| Medium format | 62.7mm | 63mm on Medium format |
| Full frame | 49.5mm | 50mm on Full frame |
| APS-C (Canon) | 30.9mm | 30mm on APS-C (Canon) |
| Micro Four Thirds | 24.8mm | 25mm on Micro Four Thirds |
| 1-inch | 18.3mm | 18.5mm on 1-inch |
Primes at 33mm for APS-C (14)
| Lens | Focal | Aperture | Mount | Year |
|---|---|---|---|---|
| Fujifilm XF 33mm f/1.4 R LM WR | 33mm | f/1.4 | Fujifilm X | 2021 |
| Laowa Argus 33mm f/0.95 CF APO (E) | 33mm | f/1 | Sony E | 2021 |
| Laowa Argus 33mm f/0.95 CF APO (X) | 33mm | f/1 | Fujifilm X | 2021 |
| Laowa Argus 33mm f/0.95 CF APO (Z) | 33mm | f/1 | Nikon Z | 2021 |
| Meike AF 33mm f/1.4 (E) | 33mm | f/1.4 | Sony E | 2024 |
| Meike AF 33mm f/1.4 (X) | 33mm | f/1.4 | Fujifilm X | 2024 |
| Meike AF 33mm f/1.4 (Z) | 33mm | f/1.4 | Nikon Z | 2024 |
| Tokina atx-m 33mm f/1.4 E | 33mm | f/1.4 | Sony E | 2021 |
| Tokina SZ 33mm f/1.2 E | 33mm | f/1.2 | Sony E | 2022 |
| Tokina atx-m 33mm f/1.4 X | 33mm | f/1.4 | Fujifilm X | 2020 |
| Tokina SZ 33mm f/1.2 X | 33mm | f/1.2 | Fujifilm X | 2022 |
| Viltrox AF 33mm f/1.4 (E) | 33mm | f/1.4 | Sony E | 2020 |
| Viltrox AF 33mm f/1.4 (X) | 33mm | f/1.4 | Fujifilm X | 2020 |
| Viltrox AF 33mm f/1.4 (Z) | 33mm | f/1.4 | Nikon Z | 2021 |
Zooms that reach 33mm (45)
| Lens | Focal | Aperture | Mount | Year |
|---|---|---|---|---|
| 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 |
| 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 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 |