| DG Summilux 25mm | |
| Maker: | Panasonic |
| Feat-Is: | n |
| Type: | Normal |
| Flength: | 25mm |
| Flength-Eq: | 50mm |
| Aperture: | 1.4 - f/16 |
| Groups: | 9 |
| Elements: | 7 |
| Diaphragm: | 7 blades, round |
| Close-Dist: | 0.3 m (0.98 ft) |
| Max-Mag: | 1.1 |
| Weight: | 200g (7.0 oz) |
| Max-Diameter: | 63 mm (2.5 in) |
| Max-Length: | 54.5 mm (2.1 in) |
| Filter: | 46 mm |
| Av-Diag: | 47 deg. |
| Start: | 2011 |
The Panasonic Leica DG Summilux 25mm 1.4 lens is a normal lens for Micro Four Thirds system cameras. It is co-branded between Leica and Panasonic, built in Japan under Leica management.
Focusing is internal, so polarizing filters can be used consistently. The 46mm thread lets a Micro Four Thirds user share filters between it, the Panasonic 14mm, Panasonic Lumix 20mm, Panasonic Leica 45mm, Panasonic 45-175mm, Olympus M.Zuiko Digital ED 12mm f/2 and Olympus M.Zuiko Digital ED 60mm f/2.8 Macro lenses.
Reviews are positive,[1] [2] ranging from "very sharp"[3] to "sensational".[4]