Home > Cameras > Lenses and Adapters > Sigma Lens 18-50mm F2.8 EX DC Digital Camera SLR Lens for Canon

The characteristics of Digital SLR cameras were taken into consideration when designing the Lens power layout. The new advanced lens design corrects various aberrations. This lens provides the utmost correction against lateral chromatic aberration which is a serious problem for digital SLR cameras. This lens is specially coated to get the best Color balance whilst cutting down flare and ghost caused by reflections from the digital image sensor and lens. It has excellent correction for vignetting and superior peripheral brightness is ensured. A Special Low Dispersion (SLD) lens and two aspherical lens elements provide excellent correction for all types of aberrations. The design produces a compact and lightweight, yet robust, construction with an overall length of 84.1mm (3.3in.) and maximum diameter of 74.1mm (2.9in.) and weight of 445g (15.6oz). This lens has a minimum focusing distance of 11 inches (28 cm.). It is equipped with inner focusing system. The non-rotating front lens element makes the lens suitable for using its petal-type lens hood and circular polarizing filters.

EX lens series denotes excellence of engineering and new technology.

Compact and lightweight Zoom despite large F2.8 aperture.

Excellent correction for various types of aberration provided by one SLD (Special Low Dispersion) glass element and two aspherical lenses.

Super Multi Layer (SML) coating reduces flare and ghosting

Focal Length:18-50mm

Minimum Aperture:F22

Lens Construction:15 Elements in 13 Groups

Number of Diaphragm Blades:7pcs

Minimum Focusing Distance:11inches (28 cm.)

Filter Size:67mm

Lens Hood: Petal-type hood

Dimensions: Diameter 74.1mm (2.9 in.)X Length 84.1mm (3.3in.)

Weight: 445gr/15.6ounces

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