Sigma 28-105mm f/2.8 DG DN Art Lens Overview

Flexing a vast zoom range and a fast constant aperture, the 28-105mm f/2.8 DG DN Art Lens from Sigma covers a variety of popular focal lengths, equipping you to capture everything from sweeping landscapes to intimate portraits all with one lens. Designed for L-Mount-mount full-frame mirrorless camera systems, this lens provides a minimum focusing distance of 15.8" across the entire zoom, ensuring your ability to capture detailed close-ups of your subjects. Driven by an HLA motor, this lens delivers quiet and precise autofocusing, and its rounded 12-blade diaphragm ensures pleasing and circular bokeh. This lens repels damage from outside elements by coupling a water- and oil-repellant front lens element coating with a dust- and splash-resistant design.

Lens Features

• Two AF-L buttons programmable to your shooting needs.
• Zoom lock switch to prevent accidental extension.
• Lockable aperture ring with click/de-click function for smooth adjustments and prevention of unintentional changes.

Optical Design

• Two F Low Dispersion (FLD) and one Special Low Dispersion (SLD) elements reduce chromatic aberrations and color fringing for improved clarity and color accuracy.
• Five aspherical elements control spherical aberrations and distortion, enhancing sharpness and accurate rendering.
• Water- and oil-repellant coating on the front lens element to minimize liquid adherence.

Additional Lens Benefits

• Lens construction: 18 elements in 13 groups.
• Approximate weight: 2 lb (0.9 kg). Magnesium barrel near the mount for a lightweight design, reducing shooting fatigue.
• 82mm filter thread for wide compatibility.