Sigma 35mm f/1.4 DG DN A (Art) Full-Frame Autofocus Lens for Leica L-Mount, Black {67}

Sigma's proven 35mm f/1.4 Art, rebuilt ground-up for mirrorless.

The 35mm F1.4 DG DN Art is a full redesign of the lens that launched Sigma's Global Vision program, built from scratch to take advantage of the shorter flange distance of mirrorless systems than adapted from the DSLR version. The optical formula runs 15 elements in 11 groups, pulling together two SLD elements, one ELD element, one FLD element, and two aspherical elements to control axial chromatic aberration and sagittal coma flare, the latter being especially important when shooting bright point sources near frame edges at f/1.4. Super Multi-Layer Coating keeps contrast honest in backlit situations.

The 11-bladed aperture produces rounded bokeh that holds its shape well even when stopped down to f/4, and the minimum focus distance of 0.30m gives you 0.19x magnification when you need to work close. AF runs on a stepper motor driving a single lightweight element, which keeps acquisition quiet and transitions smooth. The aperture ring is de-clickable and lockable, and the customizable AFL button adds operational flexibility. At 645g in a magnesium alloy body with dust and moisture sealing across all 11 joins, switches, and the mount interface, this is a lens built to work in conditions that would sideline lesser glass. The 67mm filter thread is a widely available size, which keeps accessory costs reasonable.

Who It's For

Night photographers shooting cityscapes or astrophotography on L-mount bodies will appreciate how well the lens controls sagittal coma flare wide open at f/1.4, keeping bright points of light from smearing near the frame edges. Portrait shooters get clean, rounded bokeh from those 11 aperture blades and a focal length that flatters subjects without compressing perspective unnaturally. Documentary and street photographers working a Panasonic S5 or Lumix S1 will find the weather sealing and stepper motor's quiet AF a practical combination for unpredictable situations. Video operators who need smooth, stepless aperture transitions during a take will get that from the de-clicked aperture ring, so long as focus breathing is factored into shot design.

Key Features

• 15 elements in 11 groups with 2 SLD, 1 ELD, 1 FLD, 2 aspherical elements
• f/1.4 max aperture for low-light work and shallow depth of field
• Stepper motor AF with full-time manual focus override
• 11-bladed aperture produces rounded bokeh down to f/4
• 0.30m minimum focus distance with 0.19x magnification
• De-clickable, lockable aperture ring for silent video exposure control
• Magnesium alloy body with weather sealing across all 11 joints
• 645g weight optimized for full-frame mirrorless balance

FAQ

How does this redesign differ from the older 35mm f/1.4 Art for mirrorless?

Ground-up optical redesign built specifically for mirrorless flange distances instead of adapted from the DSLR version. It's 8mm shorter and 110-115g lighter than the prior mirrorless-adapted model, with updated glass selections to control sagittal coma flare at f/1.4.

What causes the focus breathing, and does it matter for stills work?

The stepper motor driving a single focusing element produces noticeable focus breathing during video, but it's not a concern for stills. AF acquisition is reasonable and transitions smooth, though not as fast as modern linear motors.

Will the 11-bladed aperture stay rounded when stopped down?

Yes. The rounded bokeh holds its shape well even at f/4, and cat's eye effect diminishes as you stop down from f/1.4, though it remains visible across most of the frame wide-open.

What does "de-clickable aperture ring" mean practically?

Flip the Click switch on the barrel to disable aperture ring detents, letting you adjust exposure smoothly and silently during video without discrete clicking sounds between stops.

How close can you focus, and is macro work realistic?

Minimum focus distance is 0.30m with 0.19x magnification. It's close enough for tight headshots and product work, but not true macro-you're working at roughly 1:5 reproduction ratio.

Which optical elements control flare and aberration?

Two SLD elements, one ELD element, one FLD element, and two aspherical elements work together to minimize axial chromatic aberration and sagittal coma flare, with Super Multi-Layer Coating suppressing ghosting in backlit scenes.

Is weather sealing comprehensive enough for professional use?

Yes. Dust and moisture sealing covers all 11 joints, every switch and button, plus the mount interface with a rubber gasket. There's also a water and oil repellent coating on the front element.