The SX50 specs seem to be good: Digic 5, 6400ISO, 24mm-1200mm optical equivalent, fast focus, RAW, and 10fps continuous (13 fps burst). At least good enough as an emergency backup for both and a lighter very capable vacation camera. The EOS-M will not get me 24mm (unless I buy a 14mm prime lense) nor the frame rate I need for landscape and sports.