If you shoot a dSLR

[Mark L]

I have had both SLR since 1981 and DSLR since 2002, but recently invested in a mirrorless. For me it was horses for courses - in this case the mirrorless was an addition to my kit (replacement actually). I already had a canon 1Dx so needed a smaller lighter body. The decision was easy for me as the canon supplied adaptor means I could use my existing Canon lenses flawlessly with the mirrorless body.

So how do you reckon any mirrorless would perform over the 80D with my 600mm lens?