Leica 50mm f/1.4 Summilux-M ASPH 50mm
The f/1.4 maximum aperture provides shallow depth of field and strong low-light capability in a compact, all-metal manual-focus lens for Leica M mounts. Its classic optical formula renders smooth bokeh and natural contrast with a distinct analog character that modern lenses rarely replicate. This lens is best for portrait photographers who value tactile manual control and a timeless, atmospheric look over edge-to-edge sharpness.
Focal length 50mm
Aperture f/1.4
Mount Interchangeable Mount with Included L-Mount
Weight 669 g
lens type Zoom
58 Overall Score
Price $849
Snapshot
Pros & Cons
Pros
- Strong bokeh (100th percentile) 100th
- Strong aperture (96th percentile) 96th
Cons
- Below average social proof (28th percentile)
- Below average versatility (34th percentile)
What owners think
How owner sentiment changed over time
ExclusiveBased on when customers actually wrote their reviews — so you can see whether early praise held up.
Based on 1 dated customer reviews, grouped by calendar quarter. Period analysis is in English.
The proof
Performance
Specifications
Full Specifications
Optics
| Type | Zoom |
| Focal Length Min | 50 |
| Focal Length Max | 50 |
| Elements | 14 |
| Groups | 11 |
Aperture
| Max Aperture | f/1.4 |
| Diaphragm Blades | 18 |
Build
| Mount | Interchangeable Mount with Included L-Mount |
| Format | Large Format (43.3 mm Image Circle) |
| Weight | 0.7 kg / 1.5 lbs |
| Filter Thread | 77 |
AF & Stabilization
| Stabilization | No |
Focus
| Min Focus Distance | 430 |
| Max Magnification | 1:6.67 |
vs Competition
| Spec | Leica 50mm f/1.4 Summilux-M ASPH 50mm | Sigma Contemporary 16-300mm f/3.5-6.7 DC OS | Tamron Di III 18-300mm f/3.5-6.3 Di III-A VC VXD | Nikon NIKKOR Z 28-400mm f/4-8 VR | Panasonic LUMIX G Leica DG Vario-Elmarit H-ES50200 | Viltrox 13mm F1.4 f/1.4 E STM Auto Focus Ultra Wide Angle |
|---|---|---|---|---|---|---|
| Focal Length | 50mm | 16-300mm | 18-300mm | 28-400mm | 50-200mm | 13mm |
| Max Aperture | f/1.4 | f/3.5 | f/3.5 | f/4 | f/2.8 | f/1.4 |
| Mount | Interchangeable Mount with Included L-Mount | Sony E | Fuji X | Nikon Z | Micro Four Thirds | Sony E |
| Stabilization | false | true | true | true | true | true |
| Weather Sealed | false | true | false | true | true | false |
| Weight (g) | 669 | 615 | 92 | 726 | 655 | 415 |
| AF Type | - | HLA | VXD linear motor | STM | linear motor | STM |
| Lens Type | Zoom | zoom | zoom | zoom | telephoto | Wide-Angle |
| Compare | Compare | Compare | Compare | Compare |
| Product | Af | Bokeh | Build | Macro | Optical | Aperture | Versatility | Social Proof | Stabilization |
|---|---|---|---|---|---|---|---|---|---|
| Leica 50mm f/1.4 Summilux-M ASPH 50mm | 54.5 | 99.6 | 36.2 | 56.3 | 56.5 | 96.4 | 34.2 | 28.2 | 36 |
| Sigma Contemporary 16-300mm f/3.5-6.7 DC OS Compare | 54.5 | 84.3 | 59 | 85.9 | 98.9 | 76.9 | 99.6 | 78 | 99.1 |
| Tamron Di III 18-300mm f/3.5-6.3 Di III-A VC VXD Compare | 98.3 | 74.9 | 96.6 | 87.7 | 74.6 | 76.9 | 99.2 | 83.1 | 81.3 |
| Nikon NIKKOR Z 28-400mm f/4-8 VR Compare | 86.9 | 77.8 | 51.6 | 81.3 | 97 | 71.2 | 98.9 | 83.1 | 98.3 |
| Panasonic LUMIX G Leica DG Vario-Elmarit H-ES50200 Compare | 98.3 | 86.1 | 55.3 | 23.1 | 95.9 | 83.7 | 88.3 | 65.9 | 96.4 |
| Viltrox 13mm F1.4 f/1.4 E STM Auto Focus Ultra Wide Angle Compare | 86.9 | 96.6 | 42.1 | 89.4 | 82.6 | 96.4 | 34.2 | 74 | 81.3 |
Price
Value & Pricing
From $849
B&H Photo 1 offers From $849
Newegg 2 offers From $2,420
Amazon 1 offers From $2,440
Price History
Usage Scores
A full written review is coming soon. The specs, scores, prices and charts above are always up to date.
