In article , RJH says...
In my hardly informed opinion, the reason for being of mirrorless seems
to be many of the the advantages of DSLR without the size, weight and
cost. About right?

In my opinion the reasons to be in mirrorless a

- the bodies are a bit smaller (than the DSLR ones)
- better AF for non-static scenes (the sensor "sees" what is going on
all the time and should be able to better track moving subjects)
- the shorter distance between the lens and the sensor should (I'm not a
lens expert) allow more degrees of freedom when designing lenses
- besides, swinging mirrors are a thing of the past. Doesn't make sense
to keep them in the digital age.

--
Alfred Molon

Olympus E-series DSLRs and micro 4/3 forum at
https://tech.groups.yahoo.com/group/MyOlympus/
https://myolympus.org/ photo sharing site