Sony FE 20mm f/1.8 G vs Viltrox AF 75mm f/1.2 Pro FE
The bottom line
These cover different focal lengths — the Sony FE 20mm f/1.8 G is 20mm, the Viltrox AF 75mm f/1.2 Pro FE is 75mm — so they're not really substitutes. Pick by the field of view you actually need: the Sony FE 20mm f/1.8 G for wide-angle, the Viltrox AF 75mm f/1.2 Pro FE for short-telephoto / portrait.
Choose the Sony FE 20mm f/1.8 G if…
- ✓You shoot wide — it starts at 20mm vs 75mm for landscapes, interiors and architecture.
- ✓You value portability — at 373g (13.2 oz) it's lighter than the 665g (1.47 lb) alternative for travel and all-day carry.
- ✓You like close-focus work — 0.22x magnification vs 0.12x.
- ✓You work outdoors — it's weather-sealed against dust and moisture; the other isn't.
Choose the Viltrox AF 75mm f/1.2 Pro FE if…
- ✓You want more light and background blur — f/1.2 is faster than f/1.8, better for low light and subject separation.
- ✓You need more reach — it goes to 75mm vs 20mm for distant subjects, wildlife and sport.
Where they differ
- ›Aperture: the Viltrox AF 75mm f/1.2 Pro FE opens to f/1.2 vs the Sony FE 20mm f/1.8 G's f/1.8 — more light and shallower depth-of-field.
- ›Focal range: Sony FE 20mm f/1.8 G is 20mm, Viltrox AF 75mm f/1.2 Pro FE is 75mm — different framing and reach.
- ›Weight: the Sony FE 20mm f/1.8 G is 373g (13.2 oz) vs 665g (1.47 lb) — you'll feel the difference handheld.
- ›Durability: the Sony FE 20mm f/1.8 G is weather-sealed; the other isn't.
Frequently asked
Is the Sony FE 20mm f/1.8 G or the Viltrox AF 75mm f/1.2 Pro FE better?
These cover different focal lengths — the Sony FE 20mm f/1.8 G is 20mm, the Viltrox AF 75mm f/1.2 Pro FE is 75mm — so they're not really substitutes. Pick by the field of view you actually need: the Sony FE 20mm f/1.8 G for wide-angle, the Viltrox AF 75mm f/1.2 Pro FE for short-telephoto / portrait.
Who should choose the Sony FE 20mm f/1.8 G?
Choose the Sony FE 20mm f/1.8 G if you shoot wide — it starts at 20mm vs 75mm for landscapes, interiors and architecture. Choose it if you value portability — at 373g (13.2 oz) it's lighter than the 665g (1.47 lb) alternative for travel and all-day carry. Choose it if you like close-focus work — 0.22x magnification vs 0.12x. Choose it if you work outdoors — it's weather-sealed against dust and moisture; the other isn't.
Who should choose the Viltrox AF 75mm f/1.2 Pro FE?
Choose the Viltrox AF 75mm f/1.2 Pro FE if you want more light and background blur — f/1.2 is faster than f/1.8, better for low light and subject separation. Choose it if you need more reach — it goes to 75mm vs 20mm for distant subjects, wildlife and sport.
What is the main difference between the Sony FE 20mm f/1.8 G and the Viltrox AF 75mm f/1.2 Pro FE?
Aperture: the Viltrox AF 75mm f/1.2 Pro FE opens to f/1.2 vs the Sony FE 20mm f/1.8 G's f/1.8 — more light and shallower depth-of-field.
| Product | ||
|---|---|---|
| Optical Design | ||
| Focal Length | 20mm | 75mm |
| Lens Type | Prime | Prime |
| Optical Elements | 14 | 15 |
| Optical Groups | 12 | 13 |
| Aperture & Iris | ||
| Maximum Aperture | f/1.8 | f/1.2 |
| Minimum Aperture | f/22 | f/16 |
| Aperture Blades | 9 | 11 |
| Rounded Aperture | Yes | Yes |
| Coverage & Angle | ||
| Format Coverage | Full-Frame | Full-Frame |
| Lens Mount | Sony E | Sony E |
| Angle of View | 94° – 94° | 32° |
| 35mm Equivalent | − | − |
| Focus | ||
| Autofocus | Yes | Yes |
| Focus Motor | XD Linear | STM |
| Focus Limiter | No | No |
| AF/MF Switch | Yes | Yes |
| Min Focus Distance | 18 cm | 60 cm |
| Max Magnification | 0.22x | 0.12x |
| Stabilization & Video | ||
| Optical Stabilization | No | No |
| Aperture Ring | Yes | Yes |
| Declickable Aperture | Yes | No |
| Parfocal | No | No |
| Internal Zoom | No | No |
| General | ||
| Price (MSRP) | $899 | $899 |
| Filter Size | 67mm | 77mm |
| Diameter | 73.5mm | 84mm |
| Length | 84.7mm | 104.5mm |
| Weight | 373g (13.2 oz) | 665g (1.47 lb) |
| Weather Sealed | Yes | No |
| Tripod Collar | No | No |
