Sigma 28-70mm f/2.8 DG DN Contemporary Lens for Leica L

The Sigma 28–70mm f/2.8 DG DN Contemporary Lens for Leica L-Mount is a compact zoom that fits for everyday shooting, from wide scenes to portraits. Its constant f/2.8 aperture stays bright across the zoom range, so you get better low-light performance and smooth background blur at any focal length.

Compared to many 24–70mm lenses, this 28–70mm is smaller and lighter, which makes a real difference on long shoot days, travel jobs, or gimbal work. Inside, Sigma uses two FLD elements, two SLD elements, and three aspherical elements to tame chromatic aberration, reduce distortion, and keep images sharp and clean with accurate color.

Focusing is handled by a single lightweight focus element driven by a fast, quiet stepping motor. That combo gives you responsive, near-silent autofocus, which is especially helpful for video shooters and anyone using on-camera mics or working in quiet environments.

To keep image quality high in tricky light, each optical surface features Super Multi-Layer and Nano Porous coatings. These coatings improve cut flare and ghosting and keep contrast strong, even when you’re shooting backlit subjects. On the front element, a water- and oil-repellent coating helps resist smudges and droplets, so it’s easier to keep the glass clean in the field.

On full-frame Leica L-Mount cameras, it works as a standard zoom. On APS-C bodies, it gives you a 42–105mm equivalent range, making it a handy option for tighter framing, portraits, and event coverage—all in one lightweight lens.

• Standard zoom for full-frame L-mount mirrorless cameras
• 42-105mm equivalent focal length when used on an APS-C camera
• Constant f/2.8 maximum aperture for Low light use and depth-of-field control
• Two F Low Dispersion (FLD) and two Special Low Dispersion (SLD) elements reduce chromatic aberrations and color fringing
• Three aspherical elements control spherical aberrations and distortion
• Both Super Multi-Layer and Nano Porous coatings minimize lens flare and ghosting and produce contrast-rich and color-neutral imagery
• Integrated stepping motor and optimized AF algorithm provides quick and quiet autofocus
• 28mm minimum focus distance: 7.5", 1:3.3 magnification
• 70mm minimum focus distance: 15", 1:4.6 magnification
• Rounded nine-blade diaphragm for a pleasing bokeh quality
• Brass bayonet for mounting accuracy and rigidity
• Rubber sealing for dust- and splash-resistance