Sigma 19mm f/2.8 and 30mm f/2.8 for NEX and MFT
Now this is interesting! According to this post on 43rumors, the recently announced 19mm f/2.8 and 30mm f/2.8 lenses for Micro Four Thirds and Sony NEX are the very same lenses that Sigma is using in their re-vamped DP models, the DP1M and DP2M (announcement at The Phoblographer).
I think this is a very bright move from Sigma. This way, the newly developed optical formulas can be used in two ways: in their DP cameras and in interchangeable lenses for mirrorless cameras. For the same amount of research, Sigma will get twice (or even more) the revenue. Chapeau for a clever marketing strategy!
February 23rd, 2012, 8:55 am | 
These lenses have received glowing reviews from Lloyd Chambers, Steve Huff and Michael Reichmann…when used on the DP1 and 2 Merrill. On my NEX 6 the Zeiss/Sony 24mm f/1.8 and Sony 35mm f/1.8 provide higher resolution, better speed, and are optically stabilized (when needed).
I own the 30mm /2.8 and my experience with this lens seems to support the unique relationship of this lens mated to the DP2 M.
I love the opportunity lens rental companies provide to try various lens combinations before buying. A great way to test a lens with your camera for a modest cost.
Interesting. Thanks, Richard.