Sigma 18-35mm f/1.8 DC HSM A

The Sigma 18-35mm f/1.8 DC HSM Art lens is a fast, constant-aperture wide standard zoom lens made by Sigma Corporation. It was announced April 18, 2013.

Sigma 18-35mm f/1.8 DC HSM A
MakerSigma Corporation
Technical data
TypeZoom
Focus driveHypersonic motor
Focal length18-35mm
Focal length (35mm equiv.)27-52.5mm
Aperture (max/min)f/1.8 - f/16
Close focus distance0.28 metres (0.92 ft)
Max. magnification0.23
Diaphragm blades9, rounded
Construction17 elements in 12 groups
Features
Lens-based stabilizationNo No
Unique featuresArt series; 5 SLD glass elements, 4 glassmold aspherical elements, wide aperture
ApplicationStandard zoom
Physical
Max. length121 millimetres (4.8 in)
Diameter78 millimetres (3.1 in)
Weight810 grams (1.79 lb)
Filter diameter72mm
Accessories
Lens hoodLH780-03
History
Introduction2013

This lens, at its time of manufacturing, was considered a game changer due to it being the only standard zoom boasting a constant f/1.8 aperture. The lens was designed specifically for crop body DSLRs enabling a crop factor adjusted (full frame equivalent) of f/2.88 for Canon or f/2.7 for Nikon crop body DSLRs across an equivalent range of 28mm-56mm (Canon full frame adjusted) or 27mm-53mm (Nikon full frame adjusted).

In the year of its introduction, the lens won an EXC!TE award[1] and was named Lens of the Year at the Camera Grand Prix.[2]

References


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