Sigma 105mm f/2.8 DG DN Macro Art Lens (Sony E)

Sigma 105mm f/2.8 DG DN Macro Art Lens (Sony E-Mount)
Professional Life-Size Macro and Portrait Prime
The Sigma 105mm f/2.8 DG DN Macro Art is a masterclass in optical precision, engineered specifically for full-frame Sony E-mount mirrorless cameras. As a celebrated member of Sigma’s flagship Art line, this short-telephoto prime is optimized to deliver razor-sharp clarity and absolute color accuracy from edge to edge. It features a true macro configuration, providing a life-size 1:1 reproduction ratio at a minimum focusing distance of 11.6 inches. Driven by a Hyper-Sonic Motor (HSM) for rapid, silent autofocus, and packed with tactile physical controls—including a de-clickable aperture ring and focus limiter—this lens is a premier choice for creative macro work, detailed product photography, and high-end portraiture.

Key Features & Engineering
True 1:1 Life-Size Macro: Delivers a 1:1 magnification ratio for pinpoint accuracy when capturing close-up subjects. It maintains an 11.6″ minimum focusing distance, translating to a comfortable 5.5″ working distance from the front element to your subject.

Art-Series Optical Perfection: Incorporates one Special Low Dispersion (SLD) element to drastically suppress chromatic aberrations and color fringing, ensuring crisp detail rendering. Glass surfaces feature a Super Multi-Layer Coating to neutralize flare and ghosting under harsh backlighting.

Hyper-Sonic Motor Autofocus: The integrated HSM delivers high-speed, quiet, and remarkably smooth autofocus performance. Photographers can instantly override the system via full-time manual focus control simply by turning the focus ring.

Advanced Aperture Ring Control: Features a physical manual aperture ring that can be “de-clicked” via a dedicated switch for smooth, silent iris adjustments during video capture. A secure aperture lock switch prevents accidental exposure shifts.

Pro-Tier Customization & Focus Limiter: Equipped with a physical Focus Limiter switch featuring three operational zones (Close-up, Distant, and Full Range) to minimize hunt times. Includes a customizable on-barrel Autofocus-Lock (AFL) button for tailored shooting workflows.

Weather-Sealed Brass Bayonet Mount: Built with a high-rigidity brass bayonet mount that provides maximum structural precision. The entire lens housing features extensive weather sealing to safeguard internal components when shooting in inclement conditions.

9-Blade Rounded Diaphragm: Utilizes a rounded nine-blade aperture structure to produce beautifully smooth background blur and natural circular bokeh.

Technical Specifications
Lens Classification: Sigma Art Series Macro / Portrait Prime

Lens Mount Type: Sony E-Mount (Full-Frame and APS-C compatible)

Focal Length: 105mm (157.5mm equivalent on APS-C sensors)

Maximum Aperture: f/2.8

Minimum Aperture: f/22

Maximum Magnification Ratio: 1:1 (Life-Size)

Minimum Focusing Distance: 11.6 inches / 29.5 cm

Aperture Blades: 9 (Rounded)

Autofocus Drive: HSM (Hyper-Sonic Motor)

Filter Thread Size: 62 mm

Included Accessories: Dedicated Lens Hood, Front and Rear Caps