Sigma 16mm f/1.4 DC DN | C review

Go wide without going large. Here’s the Sigma 16mm f/1.4 DC DN | C for EOS M cameras!

5 Star Rating
Sigma 16mm f/1.4 DC DN | C review
(Image: © Matthew Richards)

Digital Camera World Verdict

Wide-angle lenses with fast aperture ratings can be notoriously big and heavy, quite at odds with slimline mirrorless camera bodies. Now available in Canon EOS M mount, as well as the previously released Sony E and Micro Four Thirds mount editions, the Sigma 16mm f/1.4 DC DN | C from the company’s ‘Contemporary’ line-up proves that smaller really can be better.


  • +

    Fast aperture rating

  • +

    Great image quality

  • +

    Compact and lightweight


  • -

    No image stabilizer

  • -

    Not weather-sealed

  • -

    Pricier than its 30mm and 56mm siblings

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Mount this dinky new Sigma 16mm f/1.4 DC DN | C lens on a Canon EOS M series camera and you’ll get an ‘effective’ focal length of 25.6mm in full-frame terms. In other mount options, it works out to 24mm on Sony E mount crop-sensor bodies, and 32mm for Micro Four Thirds. That puts it in the territory of being anything from a seriously wide-angle prime to an ideal lens for street photography, landscapes, architectural interiors and more besides.

Read more: Best Canon lenses

Sigma 16mm f/1.4 DC DN | C: Specs

Lens mount: Canon EF-M, MFT, Sony E
Angle of view: 80 degrees
Diaphragm blades: 9
Minimum aperture: f/16
Minimum focusing distance: 0.25m
Maximum magnification ratio: 0.1x
Filter size: 67mm
Dimensions: 72x92mm
Weight: 405g 

The Sigma 16mm f/1.4 DC DN | C is available in EOS M mount, Sony E mount and Micro Four Thirds mount

The Sigma 16mm f/1.4 DC DN | C is available in EOS M mount, Sony E mount and Micro Four Thirds mount (Image credit: Matthew Richards)

Sigma 16mm f/1.4 DC DN | C: Build and handling

Whereas Sigma’s 28mm f/1.4 Art lens for full-frame DSLRs weighs in at nearly a kilogram, its ‘Contemporary’ lenses are built to a more space-saving, lightweight ethos. This 16mm gives a similar effective focal length and fast aperture rating for crop-sensor mirrorless cameras, but it’s less than half the weight, at 405g. It’s refreshingly small for such a fast, wide-angle lens too, measuring 72x92mm with a 67mm filter thread, and comes complete with a bayonet-fit hood.

The lens feels solid and well-built. Handling is completely straightforward but very refined. The only moving part is the focus ring which is nice and wide, and operates with supreme smoothness. That’s mainly because instead of a mechanical linkage, its electronically coupled to the virtually silent stepping motor that drives the focusing system.

Sharpness remains very good across the whole image frame, right into the corners (Image credit: Matthew Richards)

Although small, the lens packs in no less than 16 optical elements. These include three top-class FLD (‘Fluorite’ Low Dispersion), two SLD (Special Low Dispersion) and two aspherical elements. The overall aim is to maximize sharpness and contrast, while keeping chromatic aberrations and distortion to a minimum. Super Multi-Layer Coating is also applied to minimize ghosting and flare.

As we’ve seen with an increasing number of Sigma’s Global Vision lenses for Canon DSLRs, this new M-mount lens is preloaded with data for enabling in-camera corrections for aberrations like peripheral illumination, chromatic aberration and diffraction, where featured in the host camera.

Sigma 16mm f/1.4 DC DN | C: Performance

Naturally, there’s not a whole of point in having a fast f/1.4 lens if image quality doesn’t hold up when shooting wide-open. As it turns out, sharpness and contrast are maintained very well at the widest aperture. Another bonus is that the wide aperture and short 25cm minimum focus distance enable a fairly tight depth of field and good bokeh, enabling interesting perspective effects.

Even when uncorrected in-camera, vignetting is fairly minimal for such a fast, wide-angle lens. Stop down to f/2 and it becomes fairly unnoticeable. Ghosting and flare are also well controlled, and the same goes for barrel distortion.

Tested on Canon EOS M5 and M50 cameras, we found autofocus to be speedy and highly accurate for stills, while enabling smooth autofocus transitions during movie capture. The E-mount edition of the lens is designed to make the most of Sony’s Fast Hybrid AF system. As with other Sigma lenses in the series, there’s no optical image stabilization.

Distortion is fairly minimal and easily corrected, although no correction has been applied to this shot (Image credit: Matthew Richards)

Sigma 16mm f/1.4 DC DN | C: Lab tests


(Image credit: Future)

Images look really crisp even when shooting wide-open at f/1.4, right to the edges of the frame.


(Image credit: Future)

There’s virtually no color fringing and corrections are enabled anyway, in most EOS M cameras.

Distortion: -2.55

Despite the wide viewing angle, barrel distortion is no worse than in Sigma’s companion 30mm lens.

Sigma 16mm f/1.4 DC DN | C: Verdict

At short focus distances, the f/1.4 aperture enables a fairly tight depth of field, with good smoothness in defocused areas (Image credit: Matthew Richards)

High-quality optics with fast aperture ratings generally come with a big build and a high cost. This Sigma lens is beautifully built, handles really nicely and delivers sumptuous image quality. Everything’s packed into a compact and lightweight package that’s utterly in keeping with the mirrorless crop-sensor cameras for which it’s designed. It simply ticks every box.

Read more

How many Canon EF-M lenses are there? We count 31
Best Sony lenses in 2019: top lenses for Sony mirrorless and Alpha cameras
The best Micro Four Thirds lenses
Best wide-angle lenses for Nikon cameras in 2019: for DSLRS and Nikon Z
Best lenses for astrophotography in 2019

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Matthew Richards

Matthew Richards is a photographer and journalist who has spent years using and reviewing all manner of photo gear. He is Digital Camera World's principal lens reviewer – and has tested more primes and zooms than most people have had hot dinners! 

His expertise with equipment doesn’t end there, though. He is also an encyclopedia  when it comes to all manner of cameras, camera holsters and bags, flashguns, tripods and heads, printers, papers and inks, and just about anything imaging-related. 

In an earlier life he was a broadcast engineer at the BBC, as well as a former editor of PC Guide.