Sigma 30mm f/1.4 DC DN C (Contemporary) Autofocus APS-C Lens for Canon EF-M Mount, Black {52}

Sigma 30mm f/1.4 DC DN: APS-C's answer to a fast normal prime.

On an APS-C sensor, 30mm lands at roughly 48mm equivalent, putting you squarely in normal-lens territory with a 50.7° angle of view. The f/1.4 maximum aperture is the real draw here: it gives you meaningful separation at portrait distances and enough light-gathering to shoot in dim venues without immediately reaching for higher ISO. At 265g and 73.3mm long with a 52mm filter thread, this is a lens that stays on the camera than sitting in the bag.

The optical formula runs 9 elements in 7 groups, with two aspherical elements and one high-refractive index element doing the heavy lifting against spherical aberration and distortion. Super Multi-Layer Coating keeps flare in check when shooting toward light sources. The stepping AF motor is the right call for a lens this size: quiet enough for video work, and responsive enough that it doesn't slow you down on moving subjects. Minimum focus distance sits at 30cm, which gives you enough reach for product details and environmental portraits without a dedicated macro.

For Canon EF-M shooters who want a single fast prime that covers everyday shooting, this lens makes a strong case on optical quality and size alone.

Who It's For

Street photographers working Canon EF-M bodies get a discreet 265g package with a f/1.4 aperture that handles mixed and low-light environments without a tripod. Video shooters benefit from the stepping motor's near-silent operation, which keeps focus pulls clean on-camera audio. Portrait photographers shooting on APS-C get subject separation at f/1.4 with a focal length that avoids the distortion of wider options. Content creators and travel photographers who want one prime instead of a zoom will find the 30cm minimum focus distance covers product detail shots alongside wider environmental work.

Key Features

• f/1.4 maximum aperture for fast shooting and shallow depth of field control
• 30mm focal length with 50.7° angle of view on APS-C sensor
• Two aspherical and one high-refractive index element reduce distortion
• Super Multi-Layer Coating controls flare and ghosting
• Stepping AF motor delivers smooth, quiet autofocus performance
• 30cm minimum focus distance for environmental portraits and product details
• Compact 265g design with 52mm filter thread stays on camera

FAQ

What's the equivalent focal length on a full-frame camera?

30mm on APS-C is roughly 48mm equivalent, which is normal-lens territory. You get a 50.7° angle of view that works for everyday shooting without the wide distortion of a 24mm or the compression of a 50mm.

How close can you focus with this lens?

Minimum focus distance is 30cm (11.81 inches), which is close enough for product shots and environmental portraits without needing a dedicated macro lens.

Is the autofocus quiet enough for video?

Yes. The stepping AF motor is designed specifically for smooth, near-silent operation during video work. It won't record focus hunting or motor noise.

What's the optical design doing to control distortion?

Two aspherical elements and one high-refractive index element minimize spherical aberration and distortion. The Super Multi-Layer Coating also controls flare when you're shooting toward light sources.

Does this lens feel small enough to leave on the camera?

At 265g and 73.3mm long with a 52mm filter thread, yes. It stays mounted rather than bouncing around in your bag, which matters for a fast prime you'd shoot with regularly.

How many aperture blades does the diaphragm have?

Nine blades, which contributes to rounder bokeh in out-of-focus areas.

What mount does this come in?

Canon EF-M only. This is built for Canon's mirrorless APS-C bodies, not EF-mount DSLRs.