Sony today announced the α7 and α7R interchangeable lens mirror-less systems.  Though the lens selection is limited but Sony promises and extensive line by 2015. I do believe these are definitely cameras that will be strong competition for other mirror-less and prosumer range DSLR cameras.  From the specifications these are ideal cameras for all types of photography with the exception of subjects that require a fast focusing system - wildlife and sports action photography.  The cameras will be available in December and I am putting one on my wish list.

The Sony α7R has a 36.4 megapixel sensor and excludes a low pass filter for obtaining greater detail.  The Sony α7 has a 24.3 megapixel sensor coupled with a reasonably fast hybrid auto focus system.

Click here for a link to the Sony press release.