The full-frame mirrorless market is undergoing a revolution. Nikon and Canon are bringing their big guns to bear on little old Sony while Panasonic is also said to be entering what is fast becoming an overcrowded sector.
The EOS M mirrorless camera from Canon has never been a great success. Although it was a perfectly nice little touch-screen camera it just didn't grab the imagination as Canon imagined it would. Now comes a much more serious version, the M5.