Sigma Leica L mount Standard prime
Sigma 40mm f/1.4 DG HSM Art
Quick answer
The Sigma 40mm f/1.4 DG HSM Art is a standard prime lens covering 40mm at f/1.4 for the Leica L mount. Its very wide maximum aperture suits low light and shallow depth of field with strong background blur.
- Full frame
- APS-C (60mm equiv.)
- 22 Leica L cameras
- Focal
- 40mm
- Aperture
- f/1.4–16
- Weight
- 1295g
- Filter
- 82mm
- Min focus
- 0.4m
- AF motor
- HSM
What 40mm sees
- Full frame crop 1.0×
- 56.8° 48.5° horizontal
- APS-C crop 1.5× → 60mm
- 39.7° 33.4° horizontal
Diagonal angle of view. Frames drawn to scale at 40mm. Calculated from the focal length and crop factor, not measured.
Open the field-of-view calculatorSigma 40mm f/1.4 DG HSM Art specifications
Optics
- Focal length
- 40mm
- Maximum aperture
- f/1.4
- Minimum aperture
- f/16
- Format coverage
- Full frame
- Optical construction
- 16 elements in 12 groups
- Aperture blades
- 9
Focus
- Autofocus motor
- HSM
- Minimum focus distance
- 0.4 m
- Maximum magnification
- 0.15×
Physical
- Weather sealing
- Yes
- Filter thread
- 82 mm
- Weight
- 1295 g
- Length
- 155 mm
- Diameter
- 87.8 mm
Specification source: sigma-global.com
What can you shoot with the Sigma 40mm f/1.4 DG HSM Art?
At 40mm this is a standard prime, which typically suits:
- Everyday and street photography
- Natural-perspective portraits
- Documentary and travel work
Its very wide maximum aperture suits low light and shallow depth of field with strong background blur.
Frequently asked questions
What mount does the Sigma 40mm f/1.4 DG HSM Art use?
It uses the Leica L mount, so it fits Leica L cameras directly.
What is the focal length of the Sigma 40mm f/1.4 DG HSM Art?
It is a fixed 40mm lens with a maximum aperture of f/1.4. That makes it a standard lens.
Is the Sigma 40mm f/1.4 DG HSM Art a prime or a zoom lens?
It is a prime lens with a fixed 40mm focal length. Primes usually open wider than zooms; this one opens to f/1.4.
What is the Sigma 40mm f/1.4 DG HSM Art equivalent on a crop sensor?
On APS-C (1.5x crop) it frames like 60mm on full frame, with a 33.4° horizontal and 39.7° diagonal field of view. These figures are calculated from the focal length and crop factor.
Which cameras does the Sigma 40mm f/1.4 DG HSM Art fit?
Any Leica L-mount camera, including Leica SL (Typ 601), Leica SL2, Leica SL2-S, Leica SL3, and Panasonic Lumix DC-S1 and 17 more.
Alternatives for Leica L from other brands
All Leica L lensesSame mount, overlapping focal range, closest maximum aperture first.
