Truly wide and truly fast, the Canon EF mount 20mm f/1.4 DG HSM Lens is a member of the venerable Art series of Global Vision lenses from Sigma and pairs a sophisticated optical design with a robust physical construction. Comprised of 15 elements in 11 groups, the lens design includes two "F" Low Dispersion (FLD) elements, five Special Low Dispersion (SLD) elements, and two aspherical elements to significantly reduce chromatic and spherical aberrations, as well as limit distortion for clean, sharp, and evenly illuminated imagery. A Super Multi-Layer Coating has also been applied to minimize surface reflections, flare, and ghosting for increased contrast and color accuracy. The wide focal length and consistent image quality make this lens especially suitable for landscape, interior, architectural, and astrophotography applications, while the fast f/1.4 maximum aperture deems it ideal for natural and low-light shooting.
The Sigma 20mm ƒ/1.4 DG HSM Art features a prominent, bulbous front element, as is common on such lenses, and the petal-shaped lens hood is therefore built in -- there are no filter threads on the front, nor a gel-filter holder on the rear.
| Brands: |
Sigma |
| (F) Maximum Aperture: |
1.4 |
| (F) Minimum Aperture: |
16 |
| Aperture Ring: |
No |
| Number of Diaphragm Blades: |
9 |
| Elements: |
15 |
| Groups: |
11 |
| Minimum Focus (m): |
0.27 |
| Autofocus: |
Yes |
| Full time Manual: |
No |
| Focus Method: |
No |
| Distance Scale: |
No |
| DoF Scale: |
No |
| Diameter (mm): |
90.7 |
| Length (mm): |
129.8 |
| Sealing: |
No |
| Colour: |
Black |
| Power zoom: |
No |
| zoom_lock: |
No |
| Tripod Collar: |
No |
