Panasonic Lumix S 50mm f/1.8 vs Leica Summilux-SL 50mm f/1.4 ASPH
Panasonic Lumix S 50mm f/1.8 has more in its favour on paper. The Summilux-SL 50mm f/1.4 ASPH gathers more light for low light and background blur; the Lumix S 50mm f/1.8 is lighter and cheaper.
Choose the Lumix S 50mm f/1.8 for
- less weight (300g vs 1065g)
- a lower price (about £210 vs £1,950)
Choose the Summilux-SL 50mm f/1.4 ASPH for
- a brighter maximum aperture (f/1.4, about 0.7 stops more light)
| Lumix S 50mm f/1.8 | Summilux-SL 50mm f/1.4 ASPH | |
|---|---|---|
| Brand | Panasonic | Leica |
| Focal length | 50mm | 50mm |
| Maximum aperture | f/1.8 | f/1.4 |
| Weight | 300 g | 1065 g |
| Stabilisation | No | No |
| Weather sealing | Yes | Yes |
| Filter size | 67mm | 82mm |
| Made for | Full frame | Full frame |
| New price | £449 | £4,800 |
| Used at MPB (L-Mount) | £199–£229 | £1,899–£2,009 |
More lens comparisons
See all L-Mount cameras and lenses.
Frequently asked questions
Is the Panasonic Lumix S 50mm f/1.8 better than the Leica Summilux-SL 50mm f/1.4 ASPH?
The Lumix S 50mm f/1.8 offers less weight (300g vs 1065g), a lower price (about £210 vs £1,950); the Summilux-SL 50mm f/1.4 ASPH offers a brighter maximum aperture (f/1.4, about 0.7 stops more light).
Which is better value, the Lumix S 50mm f/1.8 or the Summilux-SL 50mm f/1.4 ASPH?
On L-Mount, the Panasonic Lumix S 50mm f/1.8 costs about £210 against about £1,950 for the Leica Summilux-SL 50mm f/1.4 ASPH (MPB used where listed, otherwise new; checked 5 November 2026).
Is f/1.4 worth it over f/1.8?
f/1.4 gathers about 0.7 stops more light, which helps indoors, at night and for background blur. If you mostly shoot in good light, the slower lens is usually lighter and cheaper.
Do both lenses fit the same cameras?
Both are available for L-Mount.