Viltrox AF 14mm f/4.0 AIR vs Viltrox AF 9mm f/2.8 AIR
The bottom line
These cover different focal lengths — the Viltrox AF 14mm f/4.0 AIR is 14mm, the Viltrox AF 9mm f/2.8 AIR is 9mm — so they're not really substitutes. Pick by the field of view you actually need: the Viltrox AF 14mm f/4.0 AIR for wide-angle, the Viltrox AF 9mm f/2.8 AIR for wide-angle.
Choose the Viltrox AF 14mm f/4.0 AIR if…
- ✓You need more reach — it goes to 14mm vs 9mm for distant subjects, wildlife and sport.
Choose the Viltrox AF 9mm f/2.8 AIR if…
- ✓You want more light and background blur — f/2.8 is faster than f/4, better for low light and subject separation.
- ✓You shoot wide — it starts at 9mm vs 14mm for landscapes, interiors and architecture.
Where they differ
- ›Aperture: the Viltrox AF 9mm f/2.8 AIR opens to f/2.8 vs the Viltrox AF 14mm f/4.0 AIR's f/4 — more light and shallower depth-of-field.
- ›Focal range: Viltrox AF 14mm f/4.0 AIR is 14mm, Viltrox AF 9mm f/2.8 AIR is 9mm — different framing and reach.
Frequently asked
Is the Viltrox AF 14mm f/4.0 AIR or the Viltrox AF 9mm f/2.8 AIR better?
These cover different focal lengths — the Viltrox AF 14mm f/4.0 AIR is 14mm, the Viltrox AF 9mm f/2.8 AIR is 9mm — so they're not really substitutes. Pick by the field of view you actually need: the Viltrox AF 14mm f/4.0 AIR for wide-angle, the Viltrox AF 9mm f/2.8 AIR for wide-angle.
Who should choose the Viltrox AF 14mm f/4.0 AIR?
Choose the Viltrox AF 14mm f/4.0 AIR if you need more reach — it goes to 14mm vs 9mm for distant subjects, wildlife and sport.
Who should choose the Viltrox AF 9mm f/2.8 AIR?
Choose the Viltrox AF 9mm f/2.8 AIR if you want more light and background blur — f/2.8 is faster than f/4, better for low light and subject separation. Choose it if you shoot wide — it starts at 9mm vs 14mm for landscapes, interiors and architecture.
What is the main difference between the Viltrox AF 14mm f/4.0 AIR and the Viltrox AF 9mm f/2.8 AIR?
Aperture: the Viltrox AF 9mm f/2.8 AIR opens to f/2.8 vs the Viltrox AF 14mm f/4.0 AIR's f/4 — more light and shallower depth-of-field.
| Product | ||
|---|---|---|
| Optical Design | ||
| Focal Length | 14mm | 9mm |
| Lens Type | Prime | Prime |
| Optical Elements | 12 | 13 |
| Optical Groups | 9 | 11 |
| Aperture & Iris | ||
| Maximum Aperture | f/4 | f/2.8 |
| Minimum Aperture | f/16 | f/16 |
| Aperture Blades | 9 | 9 |
| Rounded Aperture | Yes | Yes |
| Coverage & Angle | ||
| Format Coverage | Full-Frame | APS-C |
| Lens Mount | Sony E | Sony E |
| Angle of View | 112.6° | 113.8° |
| 35mm Equivalent | − | 14-14mm |
| Focus | ||
| Autofocus | Yes | Yes |
| Focus Motor | STM | STM |
| Focus Limiter | No | No |
| AF/MF Switch | Yes | Yes |
| Min Focus Distance | 13 cm | 13 cm |
| Max Magnification | 0.23x | − |
| Stabilization & Video | ||
| Optical Stabilization | No | No |
| Aperture Ring | No | No |
| Declickable Aperture | No | No |
| Parfocal | No | No |
| Internal Zoom | No | No |
| General | ||
| Price (MSRP) | $199 | $199 |
| Filter Size | 58mm | 58mm |
| Diameter | 65mm | − |
| Length | 56.4mm | − |
| Weight | 170g (6.0 oz) | 175g (6.2 oz) |
| Weather Sealed | Yes | Yes |
| Tripod Collar | No | No |
