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Quick answer
The Sigma 30mm f/1.4 EX DC HSM is a wide-angle prime lens covering 30mm 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 30mm f/1.4 EX DC HSM is an APS-C fast wide-angle prime lens covering 30mm at f/1.4 for Sigma SA mount cameras, with Hyper Sonic Motor autofocus. The wide view suits landscapes, architecture and environmental shots.
Sigma 30mm f/1.4 EX DC HSM specifications
What can you shoot with the Sigma 30mm f/1.4 EX DC HSM?
At 30mm this is a wide-angle prime, which typically suits:
- Landscapes and cityscapes
- Street and travel photography
- Environmental portraits and interiors
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 | 30mm | 61.9° | 71.6° |
| APS-C | 1.5x | 45mm | 43.6° | 51.4° |
Frequently asked questions
What mount does the Sigma 30mm f/1.4 EX DC HSM use?
It uses the Sigma SA mount, so it fits Sigma SA cameras directly.
What is the focal length of the Sigma 30mm f/1.4 EX DC HSM?
It is a fixed 30mm lens with a maximum aperture of f/1.4. That makes it a wide-angle lens.
Is the Sigma 30mm f/1.4 EX DC HSM a prime or a zoom lens?
It is a prime lens with a fixed 30mm focal length. Primes usually open wider than zooms; this one opens to f/1.4.
What is the Sigma 30mm f/1.4 EX DC HSM equivalent on a crop sensor?
On APS-C (1.5x crop) it frames like 45mm on full frame, with a 43.6° horizontal and 51.4° diagonal field of view. These figures are calculated from the focal length and crop factor.
