The Sigma 17-50mm f/2.8 EX DC OS HSM is a normal-range zoom lens designed specifically for DSLRs with APS-C sensors. Key features include:
Great for low-light event shooting and on-the-go portraiture
Sharp image quality from center to corners
Four-stop optical image stabilization
Fast, smooth, and quiet autofocus
Founder & CEO
There are several choices in the 17-50mm range for crop sensor cameras and rather than doing separate takes for each, I thought a bit of comparison would be better. The summary, though, is they are...
This lens only works with crop-sensor cameras, such as the 7D.
Angle of View | 72.4-27.9 degrees |
Aperture | f2.8-22 |
Autofocus | Autofocus |
Brand | Sigma |
Compatibility | Crop |
Diameter | 3.3" |
Dimensions | Length: 3.6" |
Filter Size | 77.0mm (nonrotating front element) |
Filter Style | nonrotating front element |
Flare Resistance | Super Multi-Layer coating |
Focal Length | 17.0-50.0 |
Focusing System | Internal, HSM motor,AF/MF switch |
Groups/Elements | 13/17 |
Hood Included | Yes |
Image Stabilization | Yes |
Item Type | Lens |
Lens Type | Normal Range and Wide Angle |
Low Dispersion Elements | 2 |
Max Aperture | 2.8 |
Maximum Magnification | .20x |
Minimum Aperture | 22.0 |
Minimum Focusing Distance | 0.92feet |
Mount | Canon EF |
Weather Resistant | No |
Weight | 1.24 lb |
Zoom Method | barrel extend, nonrotating |
Angle of View | 72.4-27.9 degrees |
Aperture | f2.8-22 |
Autofocus | Autofocus |
Brand | Sigma |
Compatibility | Crop |
Diameter | 3.3" |
Dimensions | Length: 3.6" |
Filter Size | 77.0mm (nonrotating front element) |
Filter Style | nonrotating front element |
Flare Resistance | Super Multi-Layer coating |
Focal Length | 17.0-50.0 |
Focusing System | Internal, HSM motor,AF/MF switch |
Groups/Elements | 13/17 |
Hood Included | Yes |
Image Stabilization | Yes |
Item Type | Lens |
Lens Type | Normal Range and Wide Angle |
Low Dispersion Elements | 2 |
Max Aperture | 2.8 |
Maximum Magnification | .20x |
Minimum Aperture | 22.0 |
Minimum Focusing Distance | 0.92feet |
Mount | Canon EF |
Weather Resistant | No |
Weight | 1.24 lb |
Zoom Method | barrel extend, nonrotating |