Lens Summary
Brand: Sigma
Also Known As: Sigma 120-300mm f/2.8 EX DG OS HSM
Lens Type: Zoom Lens
Format: Full Frame / FX
Focus: Autofocus
Release Date: 2005-03-14
MSRP Price: $2499
Made in: Japan
Infrared Rating: Good
Production Status: In Production
Lens Description: The Sigma 120-300mm f/2.8 EX DG OS APO HSM AF provides a large constant f/2.8 maximum aperture at all focal lengths. In essence, it transforms a large-aperture 300mm f/2.8 lens into a zoom lens that allows you to determine the picture composition without having to change your vantage point. Optical image stabilization facilitates hand-held photography by allowing you to shoot at shutter speeds 4 stops slower than without the stabilization.
Sigma 120-300mm f/2.8 EX DG OS HSM Specifications
| Lens Specifications | |
|---|---|
| Lens Type | Zoom Lens |
| Focal Length | 120-300mm |
| Mount Type | Canon EF, Nikon F |
| Format | Full Frame / FX |
| Compatible Format(s) | 35mm Film / Full-Frame Digital Sensor DSLR (APS-C Sensor) |
| Compatible with Teleconverters | Yes |
| Zoom Ratio | 2.5x |
| Maximum Reproduction Ratio | 1:8.1 |
| Optical Stabilization (Image Stabilization) | Yes |
| Aperture Information | |
| Aperture Ring | No |
| Maximim Aperture | f/2.8 |
| Minimum Aperture | f/22 |
| Maximum Angle of View (Full frame or larger format) | 20.4° - 8.2° |
| Optical Information | |
| Lens Elements | 23 |
| Lens Groups | 18 |
| Diaphragm Blades | 9 |
| Extra-Low Dispersion Glass Elements | 2 FLD elements 1 SLD element |
| Focus Information | |
| Focus | Autofocus |
| Built-in Focus Motor | Yes |
| Hyper Sonic Motor (HSM) | Yes |
| Internal Focusing | Yes |
| Minimum Focus Distance | 2.50m |
| Distance Information | Yes |
| Filter Information | |
| Filter Size | 105mm |
| Accepts Filter Type | Screw-on |
| Physical Characteristics | |
| Weather / Dust Sealing | Yes |
| Mount Material | Metal |
| Tripod Collar | Yes |
| Dimensions | 12.70 x 28.96cm |
| Weight | 2.95kg |
| Other Information | |
| Available in Colors | Black |
Lens Construction
MTF Chart
At half the cost of Canon or Nikon 300 f2.8 (stabilised), this lens sure looks interesting (very heavy mind you). If the 300 f4 VR doesnt materialise any time soon, this could be an attractive alternative. Many claim very good performance.
But wait Nasim! With the release of the new one with USB dock corfirmed for mid May, it would be a good opportunity to do a face off and see what Sigma has to offer. Maybe a good reason for once to go arftermarket…
thanks!
I bought one of these at a garage sale. This older version is NOT image stabilized as is stated in the specs. The later version is. I have to use a very fast shutter speed or a monopod or tripod. But, for the price I paid I can live with it to take baseball pics of the grandkids.
There are three versions, the first was not stabilized (EX DG HSM), the latter two ARE (EX DG OS HSM, DG OS HSM S).