The Leica filters for the Leica M system are made of optically pure glass, parallel plane ground and precisely annealed, so the full performance of the Leica M lenses is retained even with a filter attached. The range is purposely limited to the filters most commonly needed in photographic practice: The UVa filter primarily performs the role of protecting the front element of the lens, and can be left permanently attached. The circular polarization filter eliminates disturbing reflections on non-metallic surfaces, and helps to increase contrast as well as provide richer color reproduction.
A characteristic of polarization filters is that they show the same effect after each 180-degree rotation. The polarization filter for the Leica M is thus supplied with an adapter with a swivel fitting, allowing it to be rotated 180 degrees to in front of the viewfinder so you can assess and control its effect before taking the shot.
UVa Filters
| Fitting: | Model: | Order number: |
|---|---|---|
| E39 | black | 13131 |
| E39 | silver | 13132 |
| E46 | black | 13004 |
| E46 | silver | 13005 |
| E49 | black | 13328 |
| E49 „slim" for TRI-ELMAR-M | black | 13329 |
| E55 | black | 13373 |
| E55 | silver | 13374 |
| E60 | black | 13381 |
Universal-Polfilter M (Order number: 13356)
| Adapter for: | Order number: |
|---|---|
| All E39 lenses | included |
| All E46 lenses | included |
| All E49 lenses except M 135mm f/3.4 and M 75mm f/2 | 14211 |
| For M 135mm f/3.4 and M 75 mm f/2 lenses | 14418 |
Circular Polfilter E67 for TRI-ELMAR Lenses (Order number 13407)
| Adapter for: | Order number: |
|---|---|
| LEICA TRI-ELMAR 28-35-50mm f/4 ASPH. | 14286 |
| LEICA TRI-ELMAR 16-18-21mm f/4 ASPH. | 14473 |
