Quick answer
The Sigma 50mm f/1.4 EX DG HSM is a standard prime lens covering 50mm at f/1.4 for the Sigma SA mount. Its very wide maximum aperture suits low light and shallow depth of field with strong background blur.
About this lens
The Sigma 50mm f/1.4 EX DG HSM is a full-frame fast standard prime lens covering 50mm at f/1.4 for Sigma SA mount cameras, with Hyper Sonic Motor autofocus. The natural field of view suits street, documentary and everyday photography.
Sigma 50mm f/1.4 EX DG HSM specifications
- Brand
- Sigma
- Mount
- Sigma SA
- Focal length
- 50mm
- Maximum aperture
- f/1.4
- Lens type
- Prime
- Optical construction
- 8 elements in 6 groups
- Aperture blades
- 9
- Minimum focus distance
- 0.45 m
- Maximum magnification
- 0.14x
- Filter thread
- 77 mm
Specification source: dyxum.com
What can you shoot with the Sigma 50mm f/1.4 EX DG HSM?
At 50mm 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.
Full-frame equivalent and field of view
Calculated from the focal length and crop factor. Not measured.
| Sensor | Crop | Equivalent | Horizontal FOV | Diagonal FOV |
|---|---|---|---|---|
| Full frame | 1.0x | 50mm | 39.6° | 46.8° |
| APS-C | 1.5x | 75mm | 27° | 32.2° |
Frequently asked questions
What mount does the Sigma 50mm f/1.4 EX DG HSM use?
It uses the Sigma SA mount, so it fits Sigma SA cameras directly.
What is the focal length of the Sigma 50mm f/1.4 EX DG HSM?
It is a fixed 50mm lens with a maximum aperture of f/1.4. That makes it a standard lens.
Is the Sigma 50mm f/1.4 EX DG HSM a prime or a zoom lens?
It is a prime lens with a fixed 50mm focal length. Primes usually open wider than zooms; this one opens to f/1.4.
What is the Sigma 50mm f/1.4 EX DG HSM equivalent on a crop sensor?
On APS-C (1.5x crop) it frames like 75mm on full frame, with a 27° horizontal and 32.2° diagonal field of view. These figures are calculated from the focal length and crop factor.
