Sigma 18-50mm f/2.8 EX DC (Canon AF)

Price £72

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An EX series, large aperture zoom lens, Sigma's 18-50mm F2.8 EX DC has been designed specifically for use with digital SLR cameras.

  • 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 from which digital cameras tend to suffer.

The characteristics of digital SLR cameras were taken into consideration when designing the power layout of this lens. It's new advanced lens design corrects various aberrations and provides correction against lateral chromatic aberration which is a serious problem for digital SLR cameras.

Specially coated to get the best colour 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 and maximum diameter of 74.1mm and weight of 445g.

With a minimum focusing distance of 28cm and inner focusing system, the non-rotating front lens element makes the lens suitable for using its petal-type lens hood and circular polarizing filters.


  • Type: Zoom
  • Type: Wide Angle
  • Lens Fitting: Canon AF
  • Focusing: Auto
  • Filter - Size: 67mm

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