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Sigma 17-70mm F2.8-4.5 DC Macro OS HSM Nikon

Optical Characteristics

With a 35mm equivalent focal length range of 25-105mm, this lens offers a wide angle and short telephoto perspective.

Macro Lenses

True macro lenses have a magnification ratio of 1:1/ maximum maginification number of 1 or higher

Recommended Applications

* Recommendations are based only on the features necessary to perform the application successfully and do not take into account the relative image quality of different lenses

Landscapes

Wide expanses and panoramas can be captured with this focal length. For this application aperture settings will usually vary from f5.6 and smaller and cameras will usually be tripod mounted.

Portraits

A focal length of about 85mm and higher is recommended for medium closeup to closeups depending on the amount of spacial compression wanted. Depth of field is the most important tool to manipulate and a fast lens will give more scope for creative treatment.

Technologies

ASP (Aspherical Lens)

The aspherical lens complex allows freedom of design, improved performance, a reduced number of component lenses and a compact size.

HSM (Hyper-Sonic Motor)

HSM stands for "Hyper Sonic Motor". The HSM motor is driven by ultrasonic waves and it makes auto focusing, precise, silent and high-speed. Sigma's HSM version lenses are available only for AF Sigma, Canon and Nikon AF cameras.

Specifications

35mm equivalent focal length range: 25-105mm
Lens perspective: wide angle and short telephoto
Minimum aperture: f22
Image stabilisation: Lens stabilisation
Hyper-Sonic Motor: Yes
Special lens elements: 15 Elements in 12 Groups
Filter size: 72mm
Weight: 490g
Dimensions: 79 x 82.5 mm
Maximum magnification: 1:2.3
Recommended applications: Landscapes and Portraits

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