The Sigma 16mm f/1.4 DC DN Contemporary and the Fuji XF 16mm f/1.4 R WR are both fast wide-angle primes for APS-C mirrorless cameras. On an APS-C body, 16mm frames roughly like a 24mm lens on full frame, which suits landscapes, street scenes, interiors and group shots. The main question is whether you want Fujifilm’s own lens with its controls and weather resistance, or Sigma’s version that is offered for several systems.

What each lens is for
A 16mm f/1.4 lens on APS-C gives a wide view with a bright maximum aperture. That helps indoors, at dusk and at night, and it allows a shallower look than a typical wide zoom. Typical uses include street photography, travel, events, astrophotography and video work.
The Fuji XF lens is made by the camera maker for the X mount, and its name includes R for an aperture ring and WR for weather resistance. The Sigma is part of the Contemporary line, which the maker presents as a balance of image quality and size, and it has been offered in more than one mount.
Key differences
| Trait | Sigma 16mm f/1.4 | Fuji XF 16mm f/1.4 |
|---|---|---|
| Sensor format | APS-C | APS-C |
| Mounts | Several, including Sony E and Fuji X | Fuji X only |
| Aperture ring | Check the maker for your mount | Yes, in the name |
| Weather resistance | Check the maker | Yes (WR) |
Confirm size, weight, close focus distance and filter thread on each maker’s page.
How to decide
- Your mount. If you use Sony E, Canon M or another system, the Sigma may be the only one of the two that fits. Fuji X users can consider both.
- Controls. If you enjoy setting aperture on the lens barrel, the Fuji design fits that habit.
- Weather and outdoor use. If you often shoot in rain or dust, look closely at what each maker says about sealing.
- Autofocus for video. Check each maker’s notes about focus behavior and breathing if video matters to you.
Using a fast wide prime
- For night sky shots, try a wide aperture such as f/1.4 to f/2, a few seconds of exposure and a high ISO as a rough range, then adjust.
- For street work, f/4 to f/8 gives forgiving depth of field so you can focus by zone.
- For environmental portraits, move close and keep the subject away from the frame edges to limit stretching.
FAQ
Is 16mm on APS-C wide enough for landscapes?
Yes for many scenes. It frames about like 24mm on full frame, which is a common landscape focal length, though ultra-wide users may want something wider.
Does f/1.4 matter on a wide lens?
It mostly helps in low light and for background separation at close range. At landscape apertures like f/8 both lenses behave much alike in terms of depth of field.
The Short Version
Choose the Fuji if you shoot Fujifilm X and value an aperture ring and weather resistance from the camera maker. Choose the Sigma if you use a different mount or want a version offered across systems. Check the maker pages for exact details.