The Panasonic Lumix G 20mm f/1.7 ASPH is the original pancake prime for Micro Four Thirds, offering a 40mm equivalent at a fast f/1.7 aperture in an iconic slim form factor.
Best for: Street photography, travel, and everyday shooting where a fast lens in a small package is needed
Pros
- Fast f/1.7 aperture in a pancake form factor
- Sharp optics
- Lightweight at 100g
Cons
- Slower AF than the II version
- No OIS
- No weather sealing
Specifications
| Lens | |
| Brand | Panasonic |
| Type | prime |
| Status | discontinued |
| Released | 2009-09 |
| Mount | mft |
| Optics | |
| Focal length | 20mm |
| FF equivalent | 40mm |
| Max aperture | f/1.7 |
| Min aperture | f/16 |
| Aperture blades | 7 |
| Elements / Groups | 7 / 5 |
| Focus | |
| Autofocus | contrast-detect |
| MF override | Yes |
| Min focus distance | 0.2m |
| Max magnification | 0.1x |
| Stabilisation | |
| OIS | No |
| Dual IS compatible | No |
| Physical | |
| Weather sealed | No |
| Filter size | 46mm |
| Weight | 100g |
| Dimensions | 9mm length x mm diameter |
| Pricing | |
| Price (approx.) | $399 USD |