Field of View

Focal lengths / Full frame

45mm on Full frame

Frames like 45mm on full frame: 43.6° across, 29.9° top to bottom.

Reference photo: Forest
A 45mm eq.
The scene as framed by 45mm Full frame
A What 45mm Full frame sees
A 45mm on Full frame
Focal length45mm
Full-frame equivalent45mm
Horizontal43.6°
Vertical29.9°
Diagonal51.4°
SensorFull frame 36 × 24 mm
Crop factor×1
Aspect ratio3:2

Compare it with another setup →

Same framing on other formats

The focal length that matches 45mm full-frame equivalent on each sensor size (crop-factor convention, diagonal).

SensorFocal lengthClosest page
Medium format57mm55mm on Medium format
APS-C30mm30mm on APS-C
APS-C (Canon)28.1mm28mm on APS-C (Canon)
Micro Four Thirds22.5mm20mm on Micro Four Thirds
1-inch16.7mm18.5mm on 1-inch

Primes at 45mm for Full frame (12)

LensFocalApertureMountYear
Canon RF 45mm f/1.2 STM45mmf/1.2Canon RF2025
Laowa Argus 45mm f/0.95 FF (E)45mmf/1Sony E2021
Laowa Aksen 45mm f/2.8 1-5X Ultra Macro APO (E)45mmf/2.8Sony E2026
Laowa Aksen 45mm f/2.8 1-5X Ultra Macro APO (L)45mmf/2.8L-Mount2026
Laowa Argus 45mm f/0.95 FF (RF)45mmf/1Canon RF2021
Laowa Aksen 45mm f/2.8 1-5X Ultra Macro APO (RF)45mmf/2.8Canon RF2026
Laowa Aksen 45mm f/2.8 1-5X Ultra Macro APO (X)45mmf/2.8Fujifilm X2026
Laowa Argus 45mm f/0.95 FF (Z)45mmf/1Nikon Z2021
Laowa Aksen 45mm f/2.8 1-5X Ultra Macro APO (Z)45mmf/2.8Nikon Z2026
Samyang AF 45mm f/1.8 FE45mmf/1.8Sony E2019
Sigma 45mm f/2.8 DG DN | C (E)45mmf/2.8Sony E2019
Sigma 45mm f/2.8 DG DN | C (L)45mmf/2.8L-Mount2019
Zooms that reach 45mm (64)
LensFocalApertureMountYear
Canon RF 20-50mm f/4L IS USM PZ20–50mmf/4Canon RF2026
Canon RF 24-50mm f/4.5-6.3 IS STM24–50mmf/4.5–6.3Canon RF2023
Canon RF 24-70mm f/2.8L IS USM24–70mmf/2.8Canon RF2019
Canon RF 24-105mm f/4L IS USM24–105mmf/4Canon RF2018
Canon RF 24-105mm f/4-7.1 IS STM24–105mmf/4–7.1Canon RF2020
Canon RF 24-105mm f/2.8L IS USM Z24–105mmf/2.8Canon RF2023
Canon RF 24-240mm f/4-6.3 IS USM24–240mmf/4–6.3Canon RF2019
Canon RF 28-70mm f/2L USM28–70mmf/2Canon RF2018
Canon RF 28-70mm f/2.8 IS STM28–70mmf/2.8Canon RF2024
Leica Vario-Elmarit-SL 24-90mm f/2.8-4 ASPH.24–90mmf/2.8–4L-Mount2015
Leica Vario-Elmarit-SL 24-70mm f/2.8 ASPH.24–70mmf/2.8L-Mount2021
Leica Vario-Elmarit-SL 28-70mm f/2.8 ASPH.28–70mmf/2.8L-Mount2025
Nikon Z 24-50mm f/4-6.324–50mmf/4–6.3Nikon Z2020
Nikon Z 24-70mm f/2.8 S24–70mmf/2.8Nikon Z2019
Nikon Z 24-70mm f/2.8 S II24–70mmf/2.8Nikon Z2025
Nikon Z 24-70mm f/4 S24–70mmf/4Nikon Z2018
Nikon Z 24-105mm f/4-7.124–105mmf/4–7.1Nikon Z2026
Nikon Z 24-120mm f/4 S24–120mmf/4Nikon Z2021
Nikon Z 24-200mm f/4-6.3 VR24–200mmf/4–6.3Nikon Z2020
Nikon Z 28-135mm f/4 PZ28–135mmf/4Nikon Z2025
Nikon Z 28-400mm f/4-8 VR28–400mmf/4–8Nikon Z2024
Nikon Z 28-75mm f/2.828–75mmf/2.8Nikon Z2021
Panasonic Lumix S 20-60mm f/3.5-5.620–60mmf/3.5–5.6L-Mount2020
Panasonic Lumix S 24-105mm f/4 Macro O.I.S.24–105mmf/4L-Mount2019
Panasonic Lumix S Pro 24-70mm f/2.824–70mmf/2.8L-Mount2019
Panasonic Lumix S 24-60mm f/2.824–60mmf/2.8L-Mount2025
Panasonic Lumix S 28-200mm f/4-7.1 Macro O.I.S.28–200mmf/4–7.1L-Mount2024
Samyang AF 24-70mm f/2.8 FE24–70mmf/2.8Sony E2021
Samyang AF 24-60mm f/2.8 FE24–60mmf/2.8Sony E2025
Samyang AF 35-150mm f/2-2.8 FE35–150mmf/2–2.8Sony E2023
Samyang AF 35-150mm f/2-2.8 L35–150mmf/2–2.8L-Mount2024
Sigma 20-60mm f/2.8-4 DG | C (E)20–60mmf/2.8–4Sony E2026
Sigma 20-200mm f/3.5-6.3 DG | C (E)20–200mmf/3.5–6.3Sony E2025
Sigma 28-70mm f/2.8 DG DN | C (E)28–70mmf/2.8Sony E2021
Sigma 20-60mm f/2.8-4 DG | C (L)20–60mmf/2.8–4L-Mount2026
Sigma 20-200mm f/3.5-6.3 DG | C (L)20–200mmf/3.5–6.3L-Mount2025
Sigma 24-70mm f/2.8 DG DN | A (L)24–70mmf/2.8L-Mount2019
Sigma 24-70mm f/2.8 DG DN II | A (L)24–70mmf/2.8L-Mount2024
Sigma 28-105mm f/2.8 DG DN | A (L)28–105mmf/2.8L-Mount2024
Sigma 28-45mm f/1.8 DG DN | A (L)28–45mmf/1.8L-Mount2024
Sigma 28-70mm f/2.8 DG DN | C (L)28–70mmf/2.8L-Mount2021
Sony FE 20-70mm f/4 G20–70mmf/4Sony E2023
Sony FE 24-50mm f/2.8 G24–50mmf/2.8Sony E2024
Sony FE 24-70mm f/2.8 GM24–70mmf/2.8Sony E2016
Sony FE 24-70mm f/2.8 GM II24–70mmf/2.8Sony E2022
Sony Vario-Tessar T* FE 24-70mm f/4 ZA OSS24–70mmf/4Sony E2013
Sony FE 24-105mm f/4 G OSS24–105mmf/4Sony E2017
Sony FE 24-240mm f/3.5-6.3 OSS24–240mmf/3.5–6.3Sony E2015
Sony FE 28-60mm f/4-5.628–60mmf/4–5.6Sony E2020
Sony FE 28-70mm f/3.5-5.6 OSS28–70mmf/3.5–5.6Sony E2013
Sony FE 28-70mm f/3.5-5.6 OSS II28–70mmf/3.5–5.6Sony E2025
Sony FE 28-70mm f/2 GM28–70mmf/2Sony E2024
Sony FE PZ 28-135mm f/4 G OSS28–135mmf/4Sony E2014
Tamron 17-50mm f/4 Di III VXD (E)17–50mmf/4Sony E2023
Tamron 25-200mm f/2.8-5.6 Di III VXD G2 (E)25–200mmf/2.8–5.6Sony E2025
Tamron 28-75mm f/2.8 Di III RXD (E)28–75mmf/2.8Sony E2018
Tamron 28-200mm f/2.8-5.6 Di III RXD (E)28–200mmf/2.8–5.6Sony E2020
Tamron 28-75mm f/2.8 Di III VXD G2 (E)28–75mmf/2.8Sony E2021
Tamron 28-300mm f/4-7.1 Di III VC VXD (E)28–300mmf/4–7.1Sony E2024
Tamron 35-150mm f/2-2.8 Di III VXD (E)35–150mmf/2–2.8Sony E2021
Tamron 35-100mm f/2.8 Di III VXD (E)35–100mmf/2.8Sony E2026
Tamron 28-75mm f/2.8 Di III VXD G2 (Z)28–75mmf/2.8Nikon Z2024
Tamron 35-150mm f/2-2.8 Di III VXD (Z)35–150mmf/2–2.8Nikon Z2023
Tamron 35-100mm f/2.8 Di III VXD (Z)35–100mmf/2.8Nikon Z2026