Sigma 19mm F/2.8 EX DN Autofocus Lens for MFT (Micro Four Thirds), Black {46}

Sigma's compact 19mm F2.8 EX DN prime for mirrorless

A 19mm focal length on APS-C gives you a moderate wide angle well suited to environmental portraits, interiors, and everyday documentary work, and Sigma built this one to stay out of your way. At 140g and just 46mm long, it barely adds bulk to a Sony E or Micro Four Thirds body, making it a natural pick for photographers who want a wide prime without the weight of a zoom.

The optical formula, 8 elements in 6 groups with Super Multi-Layer Coating, is aimed at controlling flare and ghosting in the kind of high-contrast, backlit scenes that wide lenses often struggle with. A 7-blade diaphragm shapes out-of-focus areas with a bit more character than the 5 or 6-blade designs common at this price point. Wide open at f/2.8, you get enough subject separation for portraiture while still holding enough depth of field for street and travel scenes shot on the move.

Close focus down to 0.20m opens up loose macro-style compositions, useful for tabletop work or tight urban details. Autofocus runs on a micromotor, quiet enough for run-and-gun shooting or casual video capture. The 46mm filter thread keeps filter costs low, and the fixed, non-rotating front element makes it simple to work with polarizers or ND filters. It's a lens built to be carried everywhere without you noticing it's there until you need it.

Who It's For

Street photographers get a discreet, light body that pairs well with compact mirrorless cameras for all-day carrying. Travel shooters benefit from the 0.20m minimum focus distance and 46mm filter thread, letting one lens cover wide environmental shots and closer detail work without swapping glass. Documentary and event photographers working in mixed lighting can lean on the f/2.8 maximum aperture and Super Multi-Layer Coating to manage flare in backlit or high-contrast rooms. Anyone shooting Micro Four Thirds or Sony E mirrorless bodies who wants a wide prime that doesn't add weight or draw attention will find the 140g, 61mm-diameter build easy to keep mounted as a daily lens.

Key Features

• 19mm prime on APS-C for moderate wide-angle environmental and interior work
• 140g weight and 46mm length designed for compact mirrorless carry
• 7-blade diaphragm for controlled bokeh character
• 8 elements in 6 groups with Super Multi-Layer Coating to control flare and ghosting
• Micromotor autofocus, quiet for video and run-and-gun shooting
• 0.20m minimum focus distance for macro-style close work
• Fixed non-rotating front element for filter use
• 46mm filter thread

FAQ

What's the actual field of view on APS-C versus full frame?

19mm on APS-C (1.5x crop) gives you roughly a 28.5mm equivalent, a true moderate wide angle. On full-frame bodies, it would be wider, but this lens is built for mirrorless APS-C and Micro Four Thirds systems.

Is autofocus fast enough for video work?

The micromotor is quiet and smooth, which matters more than speed for run-and-gun video - you won't get snappy AF-C tracking like faster motors, but it won't make noise during recording.

Can you use filters and ND grads with the front element rotating?

The front element is fixed and doesn't rotate, so polarizers and graduated ND filters work without any vignetting or shifting as you focus or compose.

How close can you focus for detail work?

Minimum focus is 0.20m, which is tight enough for loose macro-style shots of small objects or tabletop setups without needing an extension tube.

Does it have any weather sealing?

No sealing at all, so it's not built for rain or dust exposure - keep it dry and you're fine for studio, travel, and street work in clean conditions.

What's the optical design doing to handle flare and ghosting?

8 elements in 6 groups with Super Multi-Layer Coating handles high-contrast and backlit scenes better than simpler designs; the 7-blade diaphragm also helps shape contrast in those tough lighting situations.