Sigma 16-300mm f/3.5-6.7 DC OS Contemporary (Fuji X) vs Viltrox AF 35mm f/1.7 AIR (Fujifilm X)
The bottom line
The Sigma 16-300mm f/3.5-6.7 DC OS Contemporary (Fuji X) is a zoom (16-300mm) and the Viltrox AF 35mm f/1.7 AIR (Fujifilm X) is a 35mm prime. The zoom gives you framing flexibility from one lens; the prime trades that for a fixed focal length that's usually brighter (f/1.7 vs f/3.5) and lighter to carry. Choose flexibility or a fast single focal length.
Choose the Sigma 16-300mm f/3.5-6.7 DC OS Contemporary (Fuji X) if…
- ✓You need more reach — it goes to 300mm vs 35mm for distant subjects, wildlife and sport.
- ✓You shoot wide — it starts at 16mm vs 35mm for landscapes, interiors and architecture.
- ✓You want one-lens flexibility — a 16-300mm zoom covers what the fixed 35mm can't reframe.
- ✓You shoot handheld or on an unstabilised body — it has optical stabilisation, the other doesn't.
Choose the Viltrox AF 35mm f/1.7 AIR (Fujifilm X) if…
- ✓You want more light and background blur — f/1.7 is faster than f/3.5, better for low light and subject separation.
- ✓You prefer a fast, compact single focal length — a 35mm prime over a zoom.
- ✓You value portability — at 170g (6.0 oz) it's lighter than the 615g (1.36 lb) alternative for travel and all-day carry.
Where they differ
- ›Aperture: the Viltrox AF 35mm f/1.7 AIR (Fujifilm X) opens to f/1.7 vs the Sigma 16-300mm f/3.5-6.7 DC OS Contemporary (Fuji X)'s f/3.5 — more light and shallower depth-of-field.
- ›Focal range: Sigma 16-300mm f/3.5-6.7 DC OS Contemporary (Fuji X) is 16-300mm, Viltrox AF 35mm f/1.7 AIR (Fujifilm X) is 35mm — different framing and reach.
- ›Type: the Sigma 16-300mm f/3.5-6.7 DC OS Contemporary (Fuji X) is a zoom (flexible framing), the Viltrox AF 35mm f/1.7 AIR (Fujifilm X) a prime (one focal length, usually brighter and lighter).
- ›Stabilisation: only the Sigma 16-300mm f/3.5-6.7 DC OS Contemporary (Fuji X) has optical stabilisation — steadier handheld shots, especially on bodies without IBIS.
- ›Close-up: the Sigma 16-300mm f/3.5-6.7 DC OS Contemporary (Fuji X) reaches 0.5x magnification vs 0.13x — more for close-up and macro work.
- ›Weight: the Viltrox AF 35mm f/1.7 AIR (Fujifilm X) is 170g (6.0 oz) vs 615g (1.36 lb) — you'll feel the difference handheld.
Frequently asked
Is the Sigma 16-300mm f/3.5-6.7 DC OS Contemporary (Fuji X) or the Viltrox AF 35mm f/1.7 AIR (Fujifilm X) better?
The Sigma 16-300mm f/3.5-6.7 DC OS Contemporary (Fuji X) is a zoom (16-300mm) and the Viltrox AF 35mm f/1.7 AIR (Fujifilm X) is a 35mm prime. The zoom gives you framing flexibility from one lens; the prime trades that for a fixed focal length that's usually brighter (f/1.7 vs f/3.5) and lighter to carry. Choose flexibility or a fast single focal length.
Who should choose the Sigma 16-300mm f/3.5-6.7 DC OS Contemporary (Fuji X)?
Choose the Sigma 16-300mm f/3.5-6.7 DC OS Contemporary (Fuji X) if you need more reach — it goes to 300mm vs 35mm for distant subjects, wildlife and sport. Choose it if you shoot wide — it starts at 16mm vs 35mm for landscapes, interiors and architecture. Choose it if you want one-lens flexibility — a 16-300mm zoom covers what the fixed 35mm can't reframe. Choose it if you shoot handheld or on an unstabilised body — it has optical stabilisation, the other doesn't.
Who should choose the Viltrox AF 35mm f/1.7 AIR (Fujifilm X)?
Choose the Viltrox AF 35mm f/1.7 AIR (Fujifilm X) if you want more light and background blur — f/1.7 is faster than f/3.5, better for low light and subject separation. Choose it if you prefer a fast, compact single focal length — a 35mm prime over a zoom. Choose it if you value portability — at 170g (6.0 oz) it's lighter than the 615g (1.36 lb) alternative for travel and all-day carry.
What is the main difference between the Sigma 16-300mm f/3.5-6.7 DC OS Contemporary (Fuji X) and the Viltrox AF 35mm f/1.7 AIR (Fujifilm X)?
Aperture: the Viltrox AF 35mm f/1.7 AIR (Fujifilm X) opens to f/1.7 vs the Sigma 16-300mm f/3.5-6.7 DC OS Contemporary (Fuji X)'s f/3.5 — more light and shallower depth-of-field.
| Product | ||
|---|---|---|
| Optical Design | ||
| Focal Length | 16-300mm | 35mm |
| Lens Type | Zoom | Prime |
| Optical Elements | 20 | 11 |
| Optical Groups | 14 | 9 |
| Aperture & Iris | ||
| Maximum Aperture | f/3.5 | f/1.7 |
| Minimum Aperture | f/22 | f/16 |
| Aperture Blades | 9 | 9 |
| Rounded Aperture | Yes | Yes |
| Coverage & Angle | ||
| Format Coverage | APS-C | APS-C |
| Lens Mount | Fujifilm X | Fujifilm X |
| Angle of View | 83.2° – 5.4° | 44° |
| 35mm Equivalent | 24-450mm | 53-53mm |
| Focus | ||
| Autofocus | Yes | Yes |
| Focus Motor | HLA | STM |
| Focus Limiter | No | No |
| AF/MF Switch | No | Yes |
| Min Focus Distance | 17 cm | 33 cm |
| Max Magnification | 0.5x | 0.13x |
| Stabilization & Video | ||
| Optical Stabilization | Yes | No |
| Aperture Ring | No | No |
| Declickable Aperture | No | No |
| Parfocal | No | No |
| Internal Zoom | No | No |
| General | ||
| Price (MSRP) | − | $180 |
| Filter Size | 67mm | 52mm |
| Diameter | 73.8mm | 64mm |
| Length | 123.7mm | 54.7mm |
| Weight | 615g (1.36 lb) | 170g (6.0 oz) |
| Weather Sealed | Yes | No |
| Tripod Collar | No | No |
