| Sigma 50-150mm f/2.8 EX DC HSM Specifications | |
| Frame Coverage | APS-C |
| Lens Construction (groups) | 14 |
| Lens Construction (elements) | 18 |
| No. of Diaphragm Blades | 9 |
| Minimum Aperture | 22 |
| Closest Focusing Distance | 1m (39.4") |
| Maximum Magnifcation | 0.19x |
| Filter Diameter | 67mm |
| Maximum Diameter x Length | 76.3mm x 135.1mm (3" x 5.3") |
| Weight | 770g (27.2oz) |
Reviews
Source
Shutterbug
Figuring a factor of 1.5, the lens now works like a 75-225mm f/2.8 zoom—figure a bit more with a 1.6 factor. That gives me the long, fast zoom lens I want, at a fast speed. And while Sigma says this lens is aimed at the sports, nature, and fashion photographer, I’d say they should be right out there marketing this lens to portrait guys like me.
Popular Photography
More than a pound lighter, and with superior distortion control and a much lower price than Sigma's $890 (street) full-frame version, this lens makes a very compelling argument for buying digital-only glass for your DSLR.
SigmaUser.eu
We have come to expect quite good quality from Sigma’s EX range of lenses of late, and there are no real disappointments with this offering. The resolution at the wider end of the zoom range is excellent and this only deteriorates slightly as the lens is pushed out to its longest focal length, a phenomenon that is quite normal. At the widest aperture of f/2.8 it is slightly more noticeable, but only in comparison to the excellent performance it gives at the short end when used wide open.
Peter Bernik
Sharpness is very good from f4 above, especially towards the long end (100mm and more). CA can be really bad at f2.8. AF is fast and quiet, but this lens had a slihgt frontfocus issues.
