Sigma 35mm F/2 DG DN | C

Sigma's 35mm F/2 DG DN Contemporary is a compact prime for full-frame mirrorless cameras, launched in 2020. It comes in Sony E and Leica L mount versions, so choose the version made for your camera.

The 35mm view suits street, travel and documentary work, with space for people and their surroundings. The f/2 maximum aperture gives more options in dim light than a smaller opening. It suits photographers who want one compact prime for everyday scenes.

The main trade-off is a short feature list: no built-in stabilisation and no fluorine coating. The appeal sits in the optics and the small size instead.

Both mount versions weigh 11.5 oz (325 g) and measure 2.76 in (70 mm) across. The Sony E version is 2.65 in (67.4 mm) long; the L-mount version is slightly shorter. Choose the version that matches your camera when planning space in a bag.

A screw-in filter attached directly must match the 58mm front thread. This lets you fit a polariser for reflections or an ND filter to reduce the light reaching the sensor.

On full frame,35mm gives a slightly wide view. It suits a couple at a cafe, a doorway with the room behind it, or a performer with stage context. Exact framing depends on distance. Moving closer makes a nearby subject more prominent, while stepping back includes more of the scene.

The f/2 maximum aperture gives more room for a faster shutter speed or lower ISO than a smaller opening. This helps in bars and evening streets. A close subject can have a soft background when there is space behind it. Stop down when several subjects at different distances must stay sharp.

Because the focal length is fixed, composition depends on distance. Move in for a tighter portrait; step back to include the room and the people around your subject. One view keeps your working method consistent all day.

Closest focus is 0.9 ft (27 cm), measured from the sensor. This allows nearby details such as food or plants. Leave room ahead of the glass and avoid shading the subject. Focus and framing both change as you move, so review the result before changing position.

A rubber seal at the mount helps resist dust and water drops at the camera connection. This does not establish protection throughout the barrel. Use cover in persistent rain and keep the mount clean when changing lenses.

There is no stabilisation in the lens. A camera with body stabilisation can reduce shake for still scenes. Firm support helps with slower exposures. Moving people still need enough shutter speed for their movement.

No fluorine coating is fitted to the front glass, so water spots and fingerprints need ordinary cleaning care with a soft cloth.

The optical formula contains 10 elements in nine groups, including three aspherical elements and one SLD element. Aspherical surfaces help correct distortion, which bends straight lines, and spherical aberration, which can soften detail. SLD glass helps reduce chromatic aberration, the colour fringes that can trace high-contrast edges such as branches against bright sky.