But the problem with the using the canon EOS M is that you are still stuck using lenses that need to cover the APS-C sensor, add to that there are relatively few small lenses for the system. Even an 18-55mm lens on the EOS-m is hardly tiny, and is a relatively poor lens.
Micro four thirds now offers a choice of several very small very good lenses. 14mm f/2.5 is only 55g, Panasonic 20mm f/1.7 is only 100g. The kit lenses are very small also. The olympus 40-150mm is a mere 190g, the canon 70-300mm is 630g.
The other thing is putting EF or EF-s lenses on the EOS-m with an adapter will limit autofocus even more. That is after area where the Nikon 1 wins out as at least the FT adapter doesn't greatly diminish AF performance. furthermore, the ef adapter costs over 100 quid and weighs as much as many of the prime lenses for m43.
Micro four thirds now offers a choice of several very small very good lenses. 14mm f/2.5 is only 55g, Panasonic 20mm f/1.7 is only 100g. The kit lenses are very small also. The olympus 40-150mm is a mere 190g, the canon 70-300mm is 630g.
The other thing is putting EF or EF-s lenses on the EOS-m with an adapter will limit autofocus even more. That is after area where the Nikon 1 wins out as at least the FT adapter doesn't greatly diminish AF performance. furthermore, the ef adapter costs over 100 quid and weighs as much as many of the prime lenses for m43.