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

B&H # SI185028DOSG Mfr # 861110
No Longer Available
Product Highlights
  • Exclusively for Digital SLR Cameras
  • Optical Image Stabilization
  • Fast HSM Internal Autofocus
  • Made in Japan

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 providing a high level of optical performance.

The combination of the large f/2.8 maximum aperture and anti-shake function makes capturing exceptional photos of still subjects in very low light quite achievable, and the wide 18mm focal length is well suited for indoor photography with digital SLR cameras.  This lens offers superior peripheral brightness as well as a relatively compact, light construction.  Two SLD (Special Low Dispersion) glass elements and three aspherical lens elements provide excellent correction for all types of aberrations.  The Sigma 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 along with an easy time handling the lens.  This lens' minimum focusing distance of 11.8" (30cm) throughout the entire zoom range and maximum magnification ratio of 1:4.1 are quite impressive against their class competition.

Note! Vignetting will occur if the lens is used with digital cameras with image sensors larger than APS-C size or 35mm SLR cameras.

Optical Image Stabilization
Sigma's anti-shake function makes capturing exceptional photos in under most lighting situations achievable.
HSM Autofocusing for Sigma DSLR Cameras
Sigma's best HSM Autofocus provides fulltime manual focus override along with fast and silent autofocus performance.
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 offer a compact and lightweight construction.
Performance
Focal Length 18 - 50mm
Aperture Maximum: f/2.8 - 4.5
Minimum: f/22
Camera Mount Type Sigma SA
Format Compatibility DSLR (APS-C Sensor)
Angle of View 69.3° - 27.9°
Minimum Focus Distance 11.81" (30 cm)
Magnification 0.24x
Maximum Reproduction Ratio 1:4
Elements/Groups 16/12
Diaphragm Blades 7
Features
Image Stabilization Yes
Autofocus Yes
Tripod Collar No
Environmental
Physical
Filter Thread 67 mm
Dimensions (DxL) Approx. 2.91 x 3.49" (7.39 x 8.86 cm)
Weight 13.90 oz (394 g)
Sigma 18-50mm f/2.8-4.5 DC OS HSM Zoom Lens for Sigma
  • Front & Rear Caps
  • Petal-Type Lens Hood
  • 1-Year Manufacturer's International Warranty
  • 2-Years Additional USA Warranty
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