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Fujinon XF16mmF2.8 R WR vs Viltrox AF 15mm F1.7 Air XF
Short answer
The Fujinon XF16mmF2.8 R WR (16mm) and Viltrox AF 15mm F1.7 Air XF (15mm) are both wide-angle lenses for the Fujifilm X mount. The Viltrox AF 15mm F1.7 Air XF is the faster lens at f/1.7 against f/2.8 on the Fujinon XF16mmF2.8 R WR. Only the Fujinon XF16mmF2.8 R WR has weather sealing and an aperture ring.
Evenly matched on paper
Side by side
| Fujinon XF16mmF2.8 R WR | Viltrox AF 15mm F1.7 Air XF | |
|---|---|---|
| Brand | Fujifilm | Viltrox |
| Focal length | 16mm | 15mm |
| 35mm equivalent | 24mm | 23mm |
| Maximum aperture | f/2.8 | f/1.7 |
| Mount | Fujifilm X | Fujifilm X |
| Autofocus | Yes | Yes |
| Optical stabilisation | No | — |
| Weather resistant | Yes | — |
| Aperture ring | Yes | — |
| Macro | No | — |
| Linear motor | No | — |
| Minimum aperture | f/22 | — |
| Aperture blades | 9 | — |
| Lens construction | 10 elements in 8 groups | 12 elements in 10 groups |
| Angle of view | 83.2° | — |
| Minimum focus | 0.17 m | — |
| Maximum magnification | 0.13× | — |
| Weight | 155 g | 180 g |
| Diameter | ⌀60 mm | — |
| Length | 45.4 mm | — |
| Filter thread | ⌀49 mm | ⌀58 mm |
| Launch price | — | $239 |
Where each one is ahead
Reasons to choose the Fujinon XF16mmF2.8 R WR
- Weight 155 g vs 180 g
Reasons to choose the Viltrox AF 15mm F1.7 Air XF
- Maximum aperture f/1.7 vs f/2.8
Framing and reach
| Lens | Frames like | Horizontal view | Frame width at 10 m |
|---|---|---|---|
| Fujinon XF16mmF2.8 R WR | 24 mm | 72.6° | 14.7 m |
| Viltrox AF 15mm F1.7 Air XF | 23 mm | 76.1° | 15.7 m |
Both lenses frame essentially the same view, so the choice comes down to aperture, size and handling rather than reach.
Angles and widths are calculated from focal length and sensor width, horizontally, on the native sensor of each mount.
Size and weight
- The Fujinon XF16mmF2.8 R WR is 25 g lighter than the Viltrox AF 15mm F1.7 Air XF, about 14% less.
- The Fujinon XF16mmF2.8 R WR takes ⌀49 mm filters and the Viltrox AF 15mm F1.7 Air XF ⌀58 mm, so filters are not shared.
What each one suits
| Fujinon XF16mmF2.8 R WR | Viltrox AF 15mm F1.7 Air XF | |
|---|---|---|
| Birds and wildlife | Poor | Poor |
| Sports | Poor | Poor |
| Portrait | Poor | Poor |
| Travel | Excellent | Very good |
| Street | Excellent | Excellent |
| Weddings | Very good | Very good |
| Walk around | Very good | Very good |
| Vlogging | Very good | Very good |
| Landscape | Excellent | Good |
| Macro | Poor | Poor |
Scored from the published specifications — focal length, aperture, stabilisation, weather sealing and weight. Sharpness, bokeh and rendering are not in a spec sheet and are not scored here.
Cameras that take both
Both lenses fit every interchangeable-lens X Series body — 34 in our list. Fixed-lens models such as the X100 series cannot take them.
Which one to choose
Choose the Viltrox AF 15mm F1.7 Air XF if
- low light is the priority. At f/1.7 it lets in 1.4 stops more than f/2.8 — faster shutter speeds indoors and softer backgrounds.
Everything above comes from published specifications. How sharp each lens is, how quickly it focuses and what its pictures look like are not in any spec sheet, so this comparison does not try to judge them.
Common questions
Which is lighter, the Fujinon XF16mmF2.8 R WR or the Viltrox AF 15mm F1.7 Air XF?
The Fujinon XF16mmF2.8 R WR, by 25 g — about 14% less.
Which is better in low light, the Fujinon XF16mmF2.8 R WR or the Viltrox AF 15mm F1.7 Air XF?
The Viltrox AF 15mm F1.7 Air XF. At f/1.7 against f/2.8 it gathers 1.4 stops more light, which matters without flash and for background blur. Stabilisation can offset some of that for still subjects, but not for moving ones.
Do the Fujinon XF16mmF2.8 R WR and Viltrox AF 15mm F1.7 Air XF use the same filters?
No. The Fujinon XF16mmF2.8 R WR takes ⌀49 mm and the Viltrox AF 15mm F1.7 Air XF ⌀58 mm. A step-up ring lets the smaller lens use the larger filters.
Will both lenses fit my camera?
Both use the Fujifilm X mount, so they fit any X Series camera with interchangeable lenses. They do not fit fixed-lens models such as the X100 series or GFX bodies.
compare.faqTitle
Which one is lighter?
The Fujinon XF16mmF2.8 R WR, by 25 g (155 g against 180 g).
Which is better, the Fujinon XF16mmF2.8 R WR or the Viltrox AF 15mm F1.7 Air XF?
On paper they come out even across 22 compared specs. What is left is handling and today’s price, which this page does not measure.
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Built from the specifications Fujifilm publishes.