[Klaus]

Once Canon and Nikon release their full-format mirrorless systems, the final shift will be quick. CaNikon users have a legacy burden. Switching systems is always a pain in the a**e financially but if there's a proper (native) migration path it is merely a matter of exchanging the camera. Sony A mount was reasonably successful at its time as was Four-Thirds but soon after the release of the mirrorless systems, the respective DSLR system was dead. And history will repeat itself.