Sigma has announced the 105mm f2.8 DG DN Macro Art lens for the L and Sony E mount will be available from late October and priced at around $1300.
Sigma’s DG and DN signifies that the lens has been designed ‘exclusively for full-frame mirrorless cameras’. While it’s labelled as a macro lens, it’s also obviously a mid-telephoto prime lens.
The 105mm f2.8 lens design features 17 elements in 12 groups, including one SLD element. The lens also features a nine rounded aperture blades.
A Hypersonic Motor delivers smooth autofocus in both close-up and portrait-distance settings, and a three-zone focus limiter switch allows for quicker response when focusing exclusively in either the macro or more distant range.
The lens is dust resistant and splash proof, featuring a Thermally Stable Composite (TSC) design, and aluminium construction. The bayonet mount is brass, and the aperture ring can be clicked on and off with the flick of a switch. It also features an Aperture Ring Lock Switch. The Sony E-mount version weighs 710 grams, while the L mount version is five grams heavier.
Additional benefits include a programmable AFL button on the lens barrel, and compatibility with face and eye-detection autofocus.