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Thursday, April 18, 2013

Sigma 18-35mm f/1.8 DC HSM Zoom Lens

Sigma has announced their 18-35mm f/1.8 DC HSM lens today. This is the world’s first lens that offers a fixed f/1.8 aperture throughout its zoom range. The fixed f/1.8 aperture breaks new ground in the camera lens industry, as the zoom lenses of Canon and Nikon top out at f/2.8. This Sigma lens offers more than a stop of extra light. Read the Sigma official announcement on their website, see sample images here and read a review of the lens here.

Sigma 18-35mm f/1.8 DC HSM Key Specifications :

  • 18 - 35mm, 29 - 56mm equivalent on Canon APS-C cameras
  • Constant f/1.8 aperture – f/16 minimum
  • 9 rounded diaphragm blades
  • 17 elements in 12 groups
  • Special Low Dispersion (SLD) glass
  • A – Art series lens
  • 72mm filter thread
  • Internal focusing and zooming
  • Super Multi-Layer Coating
  • AF/MF switch on side
  • 28cm closest focus distance
  • 1:4.3 maximum magnification ratio
  • Hyper Sonic Motor (HSM)
  • 78x121mm (diameter x length)
  • 810g or 28.6 ounces

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