Sony FE 20mm F1.8 G § 03 Head to head
Sony FE 20mm F1.8 G vs Viltrox PFU RBMH 20 mm f/1.8 ASPH
Sony 20mm f/1.8 is 402 g lighter. Viltrox 20mm f/1.8 has a physical aperture ring.
Both lenses are made for the Sony E mount: the Sony FE 20mm F1.8 G is a 20mm f/1.8 prime, and the Viltrox PFU RBMH 20 mm f/1.8 ASPH is a 20mm f/1.8 prime. On paper the Sony FE 20mm F1.8 G comes out ahead, 4 advantages to 2, but which one suits you depends on what you shoot.
Sony FE 20mm F1.8 G 
Viltrox PFU RBMH 20 mm f/1.8 ASPH 01
Key differences
Why is the Sony FE 20mm F1.8 G better than the Viltrox PFU RBMH 20 mm f/1.8 ASPH?
- 402 g lighter (373 g vs 775 g)
- 17 mm shorter (84.7 mm vs 102 mm long)
- Focuses 6 cm closer (0.19 m vs 0.25 m)
- Smaller filter thread (67 mm vs 82 mm)
Why is the Viltrox PFU RBMH 20 mm f/1.8 ASPH better than the Sony FE 20mm F1.8 G?
- Has a physical aperture ring
- More aperture blades (14 vs 9)
02
Which should you buy?
- landscape For landscape photography, the Sony FE 20mm F1.8 G has the edge: it is 402 g lighter to carry.
- architecture For architecture, the Sony FE 20mm F1.8 G has the edge: it is 402 g lighter to carry.
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Specification
| Specification | Sony FE 20mm F1.8 G | Viltrox PFU RBMH 20 mm f/1.8 ASPH |
|---|---|---|
| Focal length | 20mm | 20mm |
| Maximum aperture | f/1.8 | f/1.8 |
| Minimum aperture | f/22 | f/16 |
| Lens type | Ultra-wide-angle prime lens | Prime lens |
| Format | Full Frame | Full frame |
| Weight | 373 g (13.2 oz) ◆ | 775 g (27.34 oz) |
| Dimensions | 73.5 mm (diameter) x 84.7 mm (length) | 102 x 76.8 mm |
| Minimum focusing distance | 0.19 m (7.48 inches) in autofocus, 0.18 m (7.09 inches) in manual focus ◆ | 0.25 m (9.84 inches) |
| Maximum magnification | 0.2x (AF), 0.22x (MF) | — |
| Image stabilization | No | No |
| Weather sealing | Yes | Yes |
| Aperture ring | No | Yes |
| Aperture blades | 9 (rounded) | 14 ◆ |
| Optical construction | 14 elements in 12 groups, including two aspherical and three extra-low dispersion (ED) elements | 12 elements / 9 groups |
| Filter size | 67 mm ◆ | 82 mm |
| Lens mount | Sony E | Sony E |
| Released | 2020 | — |
04
Size
- A · Sony
- B · Viltrox
- 84.7 × 73.5 mm
- 102 × 76.8 mm
The Viltrox PFU RBMH 20 mm f/1.8 ASPH is 17 mm longer and 402 g heavier than the Sony FE 20mm F1.8 G.
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Sample frames
Sony FE 20mm F1.8 G
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Video reviews
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Questions
- Which is lighter, the Sony FE 20mm F1.8 G or the Viltrox PFU RBMH 20 mm f/1.8 ASPH?
- The Sony FE 20mm F1.8 G weighs 373 g, 402 g less than the Viltrox PFU RBMH 20 mm f/1.8 ASPH (775 g).
- Which focuses closer, the Sony FE 20mm F1.8 G or the Viltrox PFU RBMH 20 mm f/1.8 ASPH?
- The Sony FE 20mm F1.8 G focuses down to 0.19 m, against 0.25 m for the Viltrox PFU RBMH 20 mm f/1.8 ASPH.
- Do the Sony FE 20mm F1.8 G and the Viltrox PFU RBMH 20 mm f/1.8 ASPH have image stabilization?
- No, neither lens has optical image stabilization; rely on in-body stabilization if your camera has it.
- Is the Sony FE 20mm F1.8 G or the Viltrox PFU RBMH 20 mm f/1.8 ASPH better for landscape photography?
- For landscape photography, the Sony FE 20mm F1.8 G has the edge: it is 402 g lighter to carry.
- Is the Sony FE 20mm F1.8 G or the Viltrox PFU RBMH 20 mm f/1.8 ASPH better for architecture?
- For architecture, the Sony FE 20mm F1.8 G has the edge: it is 402 g lighter to carry.