| Sigma 18-35mm f/1.8 DC HSM A | |
| Maker: | Sigma Corporation |
| Focusdrive: | Hypersonic motor |
| Feat-Is: | n |
| Feat-Special: | Art series; 5 SLD glass elements, 4 glassmold aspherical elements, wide aperture |
| Application: | Standard zoom |
| Type: | z |
| Flength: | 18-35mm |
| Flength-Eq: | 27-52.5mm |
| Aperture: | f/1.8 - f/16 |
| Groups: | 12 |
| Elements: | 17 |
| Diaphragm: | 9, rounded |
| Close-Dist: | 0.28m (00.92feet) |
| Max-Dist: | Infinity |
| Max-Mag: | 0.23 |
| Max-Diameter: | 78mm |
| Max-Length: | 121mm |
| Weight: | 810g |
| Filter: | 72mm |
| Hood: | LH780-03 |
| Start: | 2013 |
The Sigma 18-35mm f/1.8 DC HSM Art lens is a fast, constant-aperture wide standard zoom lens made by Sigma Corporation. It was announced April 18, 2013.
This lens, at its time of manufacturing, was considered a game changer due to it being the only standard zoom boasting a constant f/1.8 aperture. The lens was designed specifically for crop body DSLRs enabling a crop factor adjusted (full frame equivalent) of f/2.88 for Canon or f/2.7 for Nikon crop body DSLRs across an equivalent range of 28mm-56mm (Canon full frame adjusted) or 27mm-53mm (Nikon full frame adjusted).
In the year of its introduction, the lens won an EXC!TE award[1] and was named Lens of the Year at the Camera Grand Prix.[2]