The Sigma 18-35mm f/1.8 DC HSM lens (Nikon F mount) is finally in stock at B&H. According to DxOMark, the Sigma 18-35 is the best performing APS-C zoom lens they have tested:
MTF Chart
Vignetting
Distortion
Lens design
Specifications
| Lens Construction: | 17 elements in 12 groups |
| Minimum aperture | f16 |
| Filter size: | 72mm |
| Angle of view (SD1): | 76.5°-44.2° |
| Minimum focusing distance | 11in |
| Dimensions (Diameter x Length): | 3.1 inches x 4.8 inches |
| Number of diaphragm blades: | 9 (rounded diaphragm) |
| Maximum magnification ratio: | 1:4.3 |
| Weight: | 28.6 oz |
