Sony FE 50mm f/1.8 vs Viltrox AF 55mm f/1.8 EVO
The bottom line
These cover different focal lengths — the Sony FE 50mm f/1.8 is 50mm, the Viltrox AF 55mm f/1.8 EVO is 55mm — so they're not really substitutes. Pick by the field of view you actually need: the Sony FE 50mm f/1.8 for short-telephoto / portrait, the Viltrox AF 55mm f/1.8 EVO for short-telephoto / portrait.
Choose the Sony FE 50mm f/1.8 if…
- ✓You're on a budget — $249 vs $370 leaves more for other gear.
- ✓You value portability — at 186g (6.6 oz) it's lighter than the 370g (13.1 oz) alternative for travel and all-day carry.
Choose the Viltrox AF 55mm f/1.8 EVO if…
- ✓You work outdoors — it's weather-sealed against dust and moisture; the other isn't.
Where they differ
- ›Focal range: Sony FE 50mm f/1.8 is 50mm, Viltrox AF 55mm f/1.8 EVO is 55mm — different framing and reach.
- ›Price: the Sony FE 50mm f/1.8 is $249, $121 under the Viltrox AF 55mm f/1.8 EVO.
- ›Weight: the Sony FE 50mm f/1.8 is 186g (6.6 oz) vs 370g (13.1 oz) — you'll feel the difference handheld.
- ›Durability: the Viltrox AF 55mm f/1.8 EVO is weather-sealed; the other isn't.
Frequently asked
Is the Sony FE 50mm f/1.8 or the Viltrox AF 55mm f/1.8 EVO better?
These cover different focal lengths — the Sony FE 50mm f/1.8 is 50mm, the Viltrox AF 55mm f/1.8 EVO is 55mm — so they're not really substitutes. Pick by the field of view you actually need: the Sony FE 50mm f/1.8 for short-telephoto / portrait, the Viltrox AF 55mm f/1.8 EVO for short-telephoto / portrait.
Who should choose the Sony FE 50mm f/1.8?
Choose the Sony FE 50mm f/1.8 if you're on a budget — $249 vs $370 leaves more for other gear. Choose it if you value portability — at 186g (6.6 oz) it's lighter than the 370g (13.1 oz) alternative for travel and all-day carry.
Who should choose the Viltrox AF 55mm f/1.8 EVO?
Choose the Viltrox AF 55mm f/1.8 EVO if you work outdoors — it's weather-sealed against dust and moisture; the other isn't.
What is the main difference between the Sony FE 50mm f/1.8 and the Viltrox AF 55mm f/1.8 EVO?
Focal range: Sony FE 50mm f/1.8 is 50mm, Viltrox AF 55mm f/1.8 EVO is 55mm — different framing and reach.
| Product | ||
|---|---|---|
| Optical Design | ||
| Focal Length | 50mm | 55mm |
| Lens Type | Prime | Prime |
| Optical Elements | 6 | 13 |
| Optical Groups | 5 | 9 |
| Aperture & Iris | ||
| Maximum Aperture | f/1.8 | f/1.8 |
| Minimum Aperture | f/22 | f/16 |
| Aperture Blades | 7 | 9 |
| Rounded Aperture | Yes | Yes |
| Coverage & Angle | ||
| Format Coverage | Full-Frame | Full-Frame |
| Lens Mount | Sony E | Sony E |
| Angle of View | 47° – 47° | 43° |
| 35mm Equivalent | − | − |
| Focus | ||
| Autofocus | Yes | Yes |
| Focus Motor | STM | STM |
| Focus Limiter | No | No |
| AF/MF Switch | No | Yes |
| Min Focus Distance | 45 cm | 43 cm |
| Max Magnification | 0.14x | − |
| Stabilization & Video | ||
| Optical Stabilization | No | No |
| Aperture Ring | No | No |
| Declickable Aperture | No | No |
| Parfocal | No | No |
| Internal Zoom | No | No |
| General | ||
| Price (MSRP) | $249 | $370 |
| Filter Size | 49mm | 58mm |
| Diameter | 68.6mm | − |
| Length | 59.5mm | 76mm |
| Weight | 186g (6.6 oz) | 370g (13.1 oz) |
| Weather Sealed | No | Yes |
| Tripod Collar | No | No |
