 |
18-50mm F2.8-4.5 DC OS HSM 
  
|
|
|
Large Aperture, Standard Zoom with Optical StabilizationAn upgrade to its predecessor, the 18-50mm F2.8-4.5 DC OS HSM is a lens dedicated to digital SLR cameras with APS-C size image sensors offering a large aperture and Sigma’s Optical Stabilization. Once again, Sigma has also engineered the built-in OS function, an anti-shake system, for Sony and Pentax mount allowing the photographer to see a stabilized image in the viewfinder. The combination of the large aperture of F2.8 and anti-shake function makes capturing exceptional photos in low light achievable, and the wide angle is well suited for indoor photography. Two SLD (Special Low Dispersion) glass elements and three Aspherical lenses provide excellent correction for all types of aberrations. The Super Multi-Layer Coating reduces flare and ghosting. Designed with inner focusing and inner zooming systems, high image quality is assured throughout the entire zoom range. The overall length of the lens does not change during focusing and zooming ensuring convenient handling. This lens has a minimum focusing distance of 11.8 inches (30cm) throughout the entire zoom range and a maximum magnification ratio of 1:4.1. The incorporation of HSM (Hyper Sonic Motor) ensures a quiet and high speed auto focus.
|
|
|
|
|
| 18-50mm F2.8-4.5 DC OS HSM |
|
 |
|
Lens Construction |
16 Elements in 12 Groups |
| Angle of View |
69.3 - 27.9 degrees |
| Number of Diaphragm Blades |
7 |
| Minimum Aperture |
F22 |
| Minimum Focusing Distance |
30cm/11.8 in. |
| Maximum Magnification |
1:4.1 |
| Filter Size |
Diameter 67mm |
| Dimensions |
Diameter 74mm X Length 88.6mm |
| Weight |
395g/13.9 oz |
| Corresponding AF Mounts |
SIGMA,
CANON,
NIKON,
SONY,
PENTAX,
|
* The appearance, specifications, and the like of the product are subject to change for improvement without notice.
* Vignetting will occur if the lens is used with digital cameras with image sensors larger than APS-C size or 35mm SLR cameras.
* For Pentax mount, if the camera body does not support HSM, auto focus will not be available. |
|
|
M.S.R.P. $500.00 USD
Features & Benefits:
- Optical Stabilizer: Sigma’s own OS System
- Large Aperture/Wide Angle: Superior low light photos
- High Image Quality: Two SLD glass elements and three Aspherical lenses corrects all aberrations
- Includes: Petal-Type Hood
- Mounts: Sigma, Nikon, Canon, Sony and Pentax
|
|
)