Here is a link to Photography Life (PL) website comparing DSLR to Mirrorless. May be helpful to those that are unfamiliar with the differences between the two systems. For those not familiar with the PL website, it has lots of good info, reviews, tips and tutorials on it.
https://photographylife.com/what-is-a-mirrorless-camera/#more-142368
I receive Photography Life periodically and yes, Mr. Mansurof compiles a lot of useful photographic information.
His article on the differences between both systems is most interesting and instructive. The way I see it is that still a dSLR is tops for noise control and action photography.
The size of the sensor when a good lens is used does not seem to be that important quality wise. I use the M43 Olympus system and I am very pleased with the images I make. I have features in my little Olympus Pen that are absent in my dSLR and they make my life as a photographer easier.
I know that someday most cameras will be mirrorless.
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