Panasonic Lumix S 40mm f/2 40mm
The 40mm f/2 full-frame prime stands out for its featherlight 145g weight, dust/splash/freeze-resistant build, and bright aperture that excels in low light. Three aspherical elements and a 7-blade circular diaphragm produce sharp, natural rendering with smooth bokeh, aided by micro-step aperture control for silent video adjustments. Best for street and portrait photographers needing a discreet everyday lens that isolates subjects with clean, pleasing background blur.
Focal length 40mm
Aperture f/2
Mount L-Mount
Weight 145 g
af type Autofocus
54 Overall Score
Price CA$549
Snapshot
Pros & Cons
Pros
- Strong aperture (90th percentile) 90th
- Strong build (89th percentile) 89th
- Strong bokeh (88th percentile) 88th
- Strong macro (67th percentile) 67th
Cons
- Below average optical (4th percentile)
- Below average versatility (34th percentile)
The proof
Performance
Specifications
Full Specifications
Optics
| Focal Length Min | 40 |
| Focal Length Max | 40 |
| Elements | 7 |
| Groups | 6 |
Aperture
| Max Aperture | f/2 |
| Diaphragm Blades | 7 |
Build
| Mount | L-Mount |
| Format | Full-Frame |
| Weight | 0.1 kg / 0.3 lbs |
| Filter Thread | 62 |
AF & Stabilization
| AF Type | Autofocus |
| Stabilization | No |
Focus
| Min Focus Distance | 300 |
| Max Magnification | 1:5.9 |
vs Competition
| Spec | Panasonic Lumix S 40mm f/2 40mm | Sigma Contemporary 16-300mm f/3.5-6.7 DC OS | Canon RF 28-70mm f/2.8 IS STM | Tamron Di III 18-300mm f/3.5-6.3 Di III-A VC VXD | Nikon NIKKOR AF-S DX NIKKOR 16-85mm f/3.5-5.6G ED VR | Meike 50mm F1.8 Full Frame STM Auto Focus Prime |
|---|---|---|---|---|---|---|
| Focal Length | 40mm | 16-300mm | 28-70mm | 18-300mm | 16-85mm | 50mm |
| Max Aperture | f/2 | f/3.5 | f/2.8 | f/3.5 | f/3.5 | f/1.8 |
| Mount | L-Mount | Sony E | Canon RF | Fujifilm X | Nikon F | Panasonic Sigma L |
| Stabilization | false | true | true | true | true | true |
| Weather Sealed | false | true | true | false | false | false |
| Weight (g) | 145 | 615 | 495 | 92 | 59 | 297 |
| AF Type | Autofocus | HLA | STM | VXD linear motor | AF-S | STM |
| Lens Type | - | zoom | zoom | zoom | zoom | prime |
| Compare | Compare | Compare | Compare | Compare |
| Product | AF | Bokeh | Build | Macro | Optical | Aperture | Versatility | Stabilization |
|---|---|---|---|---|---|---|---|---|
| Panasonic Lumix S 40mm f/2 40mm | 54.8 | 88.2 | 89.1 | 67.3 | 4.1 | 90 | 34 | 35.6 |
| Sigma Contemporary 16-300mm f/3.5-6.7 DC OS Compare | 54.8 | 84.3 | 57.8 | 86.5 | 98.8 | 76.9 | 99.6 | 99.1 |
| Canon RF 28-70mm f/2.8 IS STM Compare | 85.5 | 86.2 | 67.1 | 77.4 | 84.4 | 83.8 | 77.4 | 98.2 |
| Tamron Di III 18-300mm f/3.5-6.3 Di III-A VC VXD Compare | 98.1 | 74.9 | 96.3 | 88.4 | 73.5 | 76.9 | 99.2 | 80.5 |
| Nikon NIKKOR AF-S DX NIKKOR 16-85mm f/3.5-5.6G ED VR Compare | 54.8 | 74.9 | 98.4 | 59.8 | 64.1 | 76.9 | 94.3 | 92.2 |
| Meike 50mm F1.8 Full Frame STM Auto Focus Prime Compare | 85.5 | 95.9 | 71.2 | 96.2 | 57.2 | 93 | 34 | 80.5 |
Price
Value & Pricing
From CA$549
B&H Photo 1 offer From CA$549
We started tracking prices for this product on May 30, 2026. The chart appears once we have more data.
Usage Scores
A full written review is coming soon. The specs, scores, prices and charts above are always up to date.
