Sigma has released new versions of its fast portrait prime lens for Sony E-Mount and Leica/Panasonic/Sigma L-Mount full-frame mirrorless cameras.
Side view of the new Sigma 85mm f/1.4 DG DN lens with the supplied hood fitted. (Source: Sigma Photo.)
Designed for cameras with 36 x 24mm sensors, the new Sigma 85mm f/1.4 DG DN lens features a completely new design that contains 15 elements in 11 groups. Five Special Low Dispersion Elements and one aspherical element are included and the use of the latest high refractive index glass helps to deliver edge-to-edge image sharpness and correct colour aberrations. An 11-blade iris diaphragm opens to a circular aperture for smooth and attractive bokeh. A smaller focusing lens is paired with the stepping motor AF driver, which is optimised for both phase detection and contrast detection autofocus. This has enabled a reduction of more than 2.5 cm in overall length and roughly 500 grams in weight. The new lens introduces an ‘Iris ring lock switch’, which prevents unwanted readjustment. In addition to the dust- and splash-proof structure, the lens uses materials such as aluminum and TSC (Thermally Stable Composite) where they are best suited, achieving a level of build quality that befits the Art line.
Click here for full details of the new lens.