Sigma 105mm f/2.8 DG DN Macro A (Art) Full-Frame Autofocus Lens for Leica L-Mount, Black {62}

Sigma's 105mm f/2.8 Art macro built for mirrorless from the ground up.

Sigma designed the 105mm f/2.8 DG DN Macro Art specifically for full-frame mirrorless systems, not as a DSLR lens adapted over. That distinction matters in the optical layout: 12 elements across 7 groups, including one Super-Low-Dispersion element, with the aberration correction weighted toward longitudinal chromatic aberration, the color fringing that in-camera corrections can't touch. The result is consistent edge-to-edge rendering that holds whether you're at minimum focus distance of 29.5 cm or out at infinity.

At 1x maximum magnification, this is a true macro lens. The internal focus design means the barrel doesn't extend during focus, keeping working distance predictable and making it easier to light small subjects without the lens casting a shadow. The ring-type ultrasonic AF motor runs quietly and supports full-time manual override, which matters when you're refining focus at 1:1. The aperture ring includes a de-click switch, useful when you need to pull focus and adjust exposure simultaneously without an audible click on video. Nine diaphragm blades keep out-of-focus areas rendering smoothly at f/2.8.

Magnesium alloy construction with dust and splash resistance means this lens holds up in field conditions. At 715 g and 133.6 mm long, it's a solid but manageable addition to a L-Mount kit. For Leica L shooters who want a macro lens that was engineered for the mount than adapted to it, this is the established choice.

Who It's For

Macro photographers working with insects, botanical subjects, or product details get 1x magnification and a 29.5 cm minimum focus distance that keeps enough working room to position lights or avoid disturbing live subjects. Portrait photographers benefit from the 105mm focal length and f/2.8 aperture, which creates subject separation at moderate shooting distances. Video shooters appreciate the de-clickable aperture ring and quiet internal AF for run-and-gun or documentary work on L-Mount bodies. Food and still-life photographers shooting tethered will find the focus limiter and full-time manual override useful for locking in precise focus on a single plane.

Key Features

• 105mm f/2.8 prime with true 1× macro magnification
• 12-element, 7-group optical design with Super-Low-Dispersion element
• Ring-type ultrasonic AF motor with full-time manual focus override
• Internal focus maintains consistent 133.6mm barrel length
• 29.5cm minimum focus distance for close work
• Dust and splash-resistant magnesium alloy construction at 715g
• Aperture ring with de-click switch for silent video exposure
• Nine diaphragm blades for smooth bokeh rendering

FAQ

Is this a true macro lens or just a telephoto that focuses close?

True macro - 1x maximum magnification means you're capturing at 1:1 life-size reproduction. The 29.5 cm minimum focus distance paired with internal focus design keeps working distance predictable for lighting small subjects without lens shadow interference.

Why does Sigma's aberration correction matter for a macro lens?

Because in-camera corrections can't touch longitudinal chromatic aberration, the color fringing that appears along the optical axis. Sigma weighted the optical design to eliminate this at the source, not in post-processing - essential when you're shooting detail work where color accuracy is structural.

How does internal focus affect everyday shooting?

The barrel doesn't extend during focus, so the physical length stays 133.6 mm whether you're at minimum distance or infinity. On video, that means no focus breathing. For macro work, it means your lighting setup doesn't shift as you rack focus.

Can I use this lens for portraiture or just macro?

Both. The 105mm focal length and f/2.8 aperture with nine diaphragm blades give you smooth, controlled bokeh. The optical design corrects for comatic aberration at the edges, so edge rendering stays clean during headshots - macro lenses aren't always sharp edge-to-edge at wide apertures, but this one is.

What's the de-click switch on the aperture ring for?

Video work where you need silent exposure adjustments while pulling focus. Turn clicking off when you're adjusting stops between shots without an audible mechanical sound on your audio track.

Does this lens have image stabilization?

No. At 105mm and 1x magnification, camera-body stabilization (if your L-Mount body has it) handles most handheld macro work. For critical subjects, a tripod or focus rail is standard practice anyway.

Will Sigma teleconverters work with this lens?

Sigma's TC-1411 (1.4x) and TC-2011 (2.0x) teleconverters designed for L-Mount pair with this lens, pushing magnification to 1.4x and 2x respectively while preserving working distance - useful for skittish subjects that need extra magnification without getting closer.