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

The Sigma 28-105mm f/2.8 DG DN Art Lens offers a versatile zoom range and a fast constant aperture, ideal for capturing a wide range of subjects from expansive landscapes to detailed close-ups. Designed for Sony E-mount full-frame mirrorless cameras, this lens features a minimum focusing distance of 15.8 inches throughout its zoom range. The HLA motor provides precise and quiet autofocusing, while the 12-blade rounded diaphragm ensures pleasing, circular bokeh. Its robust construction includes a water- and oil-repellant coating and a dust- and splash-resistant design to protect against the elements.

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.