Field of View

Focal lengths / Full frame

40mm on Full frame

Frames like 40mm on full frame: 48.5° across, 33.4° top to bottom.

Reference photo: Forest
A 40mm eq.
The scene as framed by 40mm Full frame
A What 40mm Full frame sees
A 40mm on Full frame
Focal length40mm
Full-frame equivalent40mm
Horizontal48.5°
Vertical33.4°
Diagonal56.8°
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 40mm full-frame equivalent on each sensor size (crop-factor convention, diagonal).

SensorFocal lengthClosest page
Medium format50.6mm50mm on Medium format
APS-C26.7mm27mm on APS-C
APS-C (Canon)25mm25mm on APS-C (Canon)
Micro Four Thirds20mm20mm on Micro Four Thirds
1-inch14.8mm—

Primes at 40mm for Full frame (25)

LensFocalApertureMountYear
7Artisans AF 40mm f/2.5 (E)40mmf/2.5Sony E2026
7Artisans AF 40mm f/2.5 (L)40mmf/2.5L-Mount2026
7Artisans AF 40mm f/2.5 (Z)40mmf/2.5Nikon Z2026
Nikon Z 40mm f/240mmf/2Nikon Z2021
Nikon Z 40mm f/2 (SE)40mmf/2Nikon Z2022
Panasonic Lumix S 40mm f/240mmf/2L-Mount2026
Sigma 40mm f/1.4 DG HSM | A (L)40mmf/1.4L-Mount2019
Sony FE 40mm f/2.5 G40mmf/2.5Sony E2021
TTArtisan AF 40mm f/2 (E)40mmf/2Sony E2025
TTArtisan AF 40mm f/2 (L)40mmf/2L-Mount2025
TTArtisan AF 40mm f/2 (Z)40mmf/2Nikon Z2025
Viltrox AF 40mm f/2.5 Air (E)40mmf/2.5Sony E2024
Viltrox AF 40mm f/2.5 Air (L)40mmf/2.5L-Mount2026
Viltrox AF 40mm f/2.5 Air (Z)40mmf/2.5Nikon Z2024
Voigtländer Nokton 40mm f/1.2 Aspherical (E)40mmf/1.2Sony E2017
Voigtländer Septon 40mm f/2 Aspherical (E)40mmf/2Sony E2026
Voigtländer Nokton 40mm f/1.2 Aspherical SE (E)40mmf/1.2Sony E2020
Voigtländer Heliar 40mm f/2.8 Aspherical VM40mmf/2.8Leica M2022
Voigtländer Nokton 40mm f/1.2 Aspherical VM40mmf/1.2Leica M2017
Voigtländer Nokton 40mm f/1.2 Aspherical II VM40mmf/1.2Leica M2025
Voigtländer Nokton Classic 40mm f/1.4 VM40mmf/1.4Leica M2004
Voigtländer Nokton 40mm f/1.2 Aspherical (RF)40mmf/1.2Canon RF2023
Voigtländer Nokton 40mm f/1.2 Aspherical (Z)40mmf/1.2Nikon Z2022
Voigtländer Septon 40mm f/2 Aspherical (Z)40mmf/2Nikon Z2026
Zeiss Batis 40mm f/2 CF40mmf/2Sony E2018
Zooms that reach 40mm (67)
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 18-40mm f/4.5-6.318–40mmf/4.5–6.3L-Mount2024
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 20-40mm f/2.8 Di III VXD (E)20–40mmf/2.8Sony E2022
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 20-40mm f/2.8 Di III VXD (Z)20–40mmf/2.8Nikon Z2026
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