Sigma 18-50mm f/2.8-4.5 DC OS HSM Lens

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Capturing Exceptional Photos
In Low Light is Achievable

The Sigma 18-50mm f/2.8-4.5 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 and provides a high level of optical performance. Sigma 18-50mm f/2.8-4.5 DC OS HSM

The combination of the large aperture of f/2.8 and anti-shake function makes capturing exceptional photos in low light achievable, and the wide angle is well suited for indoor photography. It offers superior peripheral brightness as well as a compact and lightweight construction. 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. 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) is capable of autofocusing with all Nikon D-SLR cameras.

Note! 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.

HSM means this lens will autofocus on Nikon D40/D40x, Nikon D60, Nikon D3000, Nikon D3100 and the Nikon D5000 DX Cameras

Features

Optical Image Stabilization
Sigma's anti-shake function makes capturing exceptional photos in under most lighting situations achievable.

HSM Autofocusing
The incorporation of HSM is capable of autofocusing with all Nikon D-SLR cameras.

Inner Focus System
An inner focusing system eliminates front lens rotation, making the lens particularly suitable for using the petal-type lens hood (supplied) plus circular polarizing filters.

Excellent optical design
Special Low Dispersion (SLD) and Extraordinary Low Dispersion (ELD) glass elements provide excellent correction of color aberrations. This lens produces an exceptional level of optical performance.

Reduced Ghosting and Flare
The super multi-layer lens coating reduces flare and ghost. High image quality is assured throughout the entire zoom range.

Ideal For Portraits and Snaps
With a minimum focusing distance of 7.9", and a maximum magnification of 1:3, this large aperture standard zoom lens, with close-up ability, is ideal for portrait and snap shots.

Compact and Lightweight Lens
Its design incorporates both glass-mold and hybrid aspherical lens technology which offers a compact and lightweight construction.

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Specifications
Basics
Lens styleZoom lens
Max Format Size APS-C / DX  
Lens focal length18 50 mm  
Stabilization type Yes (4 stops claimed)  
Camera mount Canon EF, Pentax KAF3, Sony Alpha, Sigma SA, Nikon F (DX)  
Angle of view 69.3 - 27.9  
Aperture
Largest aperture opening F2.8 - F4.5  
Smallest aperture opening F22.0 - F36.0  
Includes aperture ring No  
Total diaphragm blades 7  
Optics
Total Elements 16  
Number of Groups 12  
Coatings / special elements 2 SLD glass elements 3 aspherical elements  
Focusing
Minimum focus distance 0.30 m (11.81")  
Maximum magnification ratio 0.24 x  
Autofocus type Yes  
Full time manual focus No  
Focusing method Internal  
Focus notes AF will not function with Pentax camera bodies that do not support HSM  
Lens distance scale Yes  
Depth of field scale No  
Focus distance limiter No  
Physical
Overall weight395 g (0.87 lb)  
Lens diameter 74 mm (2.91")  
Overall length 89 mm (3.49")  
Construction materials Metal mount  
Sealing No  
Zooming method Rotary (internal)  
Filter thread size 67 mm  
Filter annotations Does not rotate on focusing  
Lens hood included Yes  
Tripod collar included No


Lens Includes

Sigma 18-50mm f/2.8-4.5 DC OS HSM Zoom
Petal-Type Lens Hood
1-Year Manufacturer's Warranty

Accessories

Images
Sigma 18-50mm f/2.8-4.5 DC OS HSM Lens

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