Some more information on the upcoming/rumored Leica Summaron-M 28mm f/5.6 lens:
Here are the specs of the previous Leica 28mm f/5.6 Summaron screw mount lens #11001 (made from 1955 to 1963):
Filter Size | A36 |
f/Stop Range | f/5.6-22 |
Minimum Focus Distance | 39.3″ (1m) |
Angle of View | 76 degrees |
Groups/Elements | 6/4 |
Length | .7″ (18mm)” |
Maximum Diameter | 1.85″ (48mm) |
Weight | 5.5 oz (154g) |
Additional links on the original Summaron lens can be found here and here, sample photos are available on flickr.
If you have any more information on this new lens, you can contact me anonymously here.