An upgrade from the discontinued 135–400mm, it adds the silent HSM focusing motor, apochromatic design to minimize color aberration, and optical stabilizer. Good balance for a large lens.
Clearly a sibling to Sigma's larger 150-500mm f/5-6.3 OS lens, this full-frame tele zoom ($850, street) is almost the mirror image of that longer lens, but about 25 percent smaller. It replaces Sigma's 135-400mm f/4.5-5.6 in the lineup, and it's a significant upgrade for a number of reasons: It uses Sigma's silent HSM focusing motor, is compatible with Sigma teleconverters, and, of course, includes Sigma's Optical Stabilizer.
Read more| Lens Type: | Zoom |
| Compatibility: | Full Frame |
| Range: | Telephoto Super Telephoto |
| Mount: | Canon Nikon Pentax Sigma Sony |
| Auto Focus: | Yes |
| Full-Time Manual Focus Override: | Yes |
| Silent AF: | Yes |
| Zoom: | Yes |
| Minimum Focal Length: | 120 mm |
| Maximum Focal Length: | 400 mm |
| Fastest Aperture: | f/4.5 |
| Slowest Aperture: | f/22.0 |
| Image Stabilization: | Yes |
| Elements: | 21 |
| Groups: | 15 |
| Filter Size: | 77mm |
| Length: | 8.0 inches |
| Weight: | 61.7 ounces |
| Price: | $900.00 |
| Tripod Collar: | Yes |
| Included Case: | Yes |
| Macro: | No |
| Tilt/Shift: | No |
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