Even with a wide f/2.8 aperture at 28mm, this versatile lens is lightweight (just 10 oz.) and compact (only 2.5 inches long). It uses Sigma's 4-group zoom system and floating element to prevent flare in difficult lighting situations and virtually eliminate astigmatism throughout the entire zoom range. What you get is improved image quality and some very impressive shots. A bayonet-type lens hood is included
FEATURES:
| Filter Size | 55mm |
| F-Stop Range | 2.8-22 / 4.0-32 |
| Minimum Focus Distance | 19.7' |
| Magnification | 1:6.1 |
| Zoom/Focus Control | Two-Touch |
| Angle Of View | 75 (28mm) - 34 (70mm) Deg |
| Groups/Elements | 8/11 |
| Length | 2.5' |
| Max. Diameter | 2.8' |
| Weight | 11.3 Oz |
| Specialties | Floating Element |
