Sigma DG DN 85mm f/1.4 Art Lens - Leica L-Mount

Key Features

• One Aspherical Element, Four HR Elements
• Five SLD Elements
• Aperture Range: f/1.4 to f/16
• L-Mount Lens/Full-Frame Format
• Bright Design and Sleek Profile
• Smooth and Pleasing Bokeh
• Ideally suited for creative and artistic applications

Sigma 85mm f/1.4 DG DN Art Series Lens - Leica L-Mount offers great features and performance. The f/1.4 maximum aperture enables working in low-light environments and delivers increased control over the depth of field for achieving shallow depth of field effects. The optical design incorporates a series of low dispersion, aspherical, and high refractive index elements and its large-diameter design achieves a notable degree of clarity and sharpness with well-controlled distortion and aberrations. A Super Multi-Layer Coating enhances image quality by suppressing lens flare and ghosting for improved contrast and colour fidelity in strong lighting environments. Balancing the optics is a refined exterior design, which features a physical aperture ring, which can be de-clicked or locked, along with a dedicated focus mode switch and AFL button for intuitive and tactile control. For autofocus, a stepping motor is used that maintains a lightweight and compact design while promoting fast and near-silent focusing performance for both stills and video applications. The lens housing is weather-sealed to suit working in inclement conditions. The lens offers an 11-blade rounded diaphragm for smooth bokeh quality. As part of the Art line within Sigma's Global Vision series, this incredible lens is designed to achieve remarkable optical performance and is perfectly suited for artistic and creative applications.

Great Optical Design

This lens features Five Special Low Dispersion (SLD) elements that markedly reduce chromatic aberrations and colour fringing for improved clarity and colour accuracy. One aspherical element and four high refractive index glass elements control spherical aberrations and distortion for increased sharpness and accurate rendering. A Super Multi-Layer Coating has been applied to lens elements in order to minimise lens flare and ghosting and contribute to producing contrast-rich and colour-neutral imagery, even in backlit conditions.

Excellent Features

The integrated stepping motor realizes quick and quiet autofocus, which is further complemented by an optimized AF algorithm to achieve smoother focusing performance. The manual aperture ring can be de-clicked for smooth, silent aperture switching to benefit video applications. A dedicated aperture ring lock switch can also be employed to prevent accidental shifting of the aperture setting. It also features a weather-resistant construction with a brass bayonet that affords improved mounting accuracy and rigidity.

Our expert's opinion

A classic portrait-length lens updated for full-frame Sony E-mount mirrorless systems, the Sigma 85mm f/1.4 DG DN is an Art-series prime distinguished by its advanced and updated optical design, sleek profile, and bright design. The bright f/1.4 maximum aperture is particularly well-suited for working in available light conditions and delivers extensive control over the depth of field for isolating subject matter with selective focus.