Sigma 70mm f2.8 DG Macro Art Lens: Sigma SA Fit

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The Sigma 70mm f2.8 DG Macro Art Lens is the first macro lens in the art line offering its users top-level performance at every shooting distance thanks to the incorporation of an extending, floating, two-group focus mechanism. The optical system utilises two FLD glass elements, two SLD glass elements, and one element featuring a high rate of anomalous partial dispersion in addition to high index of refraction. Combined these elements minimise axial chromatic aberration. The resolution has been increased at close shooting distances thanks to the two aspherical lens elements. In addition to this the user can achieve razor-sharp in-focus area which contrasts with a bokeh area free of colour streaking.

Key Features:

Comes with a 9 blade-rounded diaphragm which creates an attractive blur to the out-of-focus areas of the image

The user can switch to manual focus by simply rotating the focus ring thanks to the full-time manual focus function

Includes a high-precision, rugged brass bayonet mount for extra durability

Super Multi-Layer Coating reduces flare and ghosting, providing sharp and high contrast images even in backlit conditions

Dust and splash proof rubber sealing on the lens mount

Available for the Mount Conversion Service

Features an exclusive low-dispersion glass

Expanded Sigma 70mm f2.8 DG Macro Art lens - Sigma Fit Key Features:

Focus-By-Wire System for Comfortable and Precise Focusing

The direct mechanical connection found between the focus ring and the focus drive system has been eliminated thanks to the focus-by-wire system. The newly developed DC motor adjusts focus for optimal speed and low noise which is controlled by SIGMA’s newly improved algorithm. The user is able to utilise full-time manual focus even during autofocus allowing for precise focus adjustments by turning the focus ring. This lens is ideal for macro photography because of the focus ring’s large angle of rotation which enables the user to accomplish extremely precise focusing.

Exclusive Low-Dispersion Glass

This lens eliminates chromatic aberration as well as residual chromatic aberration also knows as “secondary spectrum”. The lens includes up to three types of exclusive low-dispersion glass: Extraordinary Low Dispersion (ELD), Special Low Dispersion (SLD), and “F” Low Dispersion (FLD). Thanks to these as well as the optimised power distribution this lens provides the user with excellent image rendition which remains unaffected by residual chromatic aberration.


Lens Construction: 13 elements in 10 groups

Angle of view (35mm): 34.3°

Number of diaphragm blades: 9 (rounded diaphragm)

Minimum aperture: F22

Minimum focusing distance: 25.8cm/10.2in.

Maximum magnification ratio: 1:1

Filter size: ø 49mm

Dimensions (diameter x length): ø70.8mm x 105.8mm/2.8in. x 4.2in.

Weight: 515g/18.2oz.

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