The Sigma 30mm ƒ/1.4 DC DN Contemporary Photography Lens with EF-M-Mount is a standard prime covering APS-C sensors. A standard field of view reads close to natural perspective, which keeps attention on the subject rather than on the framing. A ƒ/1.4 maximum aperture is among the fastest made, giving very shallow depth of field and usable shutter speeds after dark, closing to ƒ/16. Autofocus lets the camera's own subject detection drive the lens, which is what makes it usable for tracking moving subjects and for video. It mounts via EF-M-Mount. Closest focus is 11.8 in, for a maximum magnification of 1:7.
Key Features
De-clickable Aperture Ring
The aperture ring can be switched between clicked and clickless. Clicked stops give repeatable exposure by feel for stills; clickless allows a silent, stepless iris pull during video, which is why the switch matters to anyone shooting both.
Standard APS-C Coverage
The lens covers APS-C sensors. A standard field of view sits near natural perspective, the neutral choice for street, documentary and general coverage.
ƒ/1.4 Maximum Aperture
ƒ/1.4 is among the fastest available, giving very shallow depth of field for portrait work and workable shutter speeds in low light, and the lens closes to ƒ/16.
Autofocus
The lens focuses under the camera's control, so hybrid shooters can use the body's own subject detection and tracking rather than pulling focus by hand — the difference between catching a moving subject and losing it.
1:7 Maximum Magnification
A maximum magnification of 1:7 sets how large a small subject renders on the sensor, with a closest focus of 11.8 in.
52mm Filter Thread
