beagle1

the original 100-400 works fine with BIF www.flickr.com/photos/mmirrorless

Canon M6ii  -  M and  "pancake" lenses www.flickr.com/photos/mmirrorless

look at the newer mirrorless cameras - e.g. Canon M6ii mirrorless cameras are smaller and lighter and can easily use DSLR lenses www.flickr.com/photos/mmirrorless

sure it could work $6k could be better spent www.flickr.com/photos/mmirrorless

maybe ... if you believe "DXO" but most pros shoot with Canon .... ;-) ... why? could be ...  something to do with image quality ...

yep, need a small pocket size camera and "pancake' lenses that can also use big DSLR lenses e.g  Canon M6ii www.flickr.com/photos/mmirrorless

yes, mirrorless is the future - - - -  and mirrorless can easily use DSLR lenses www.flickr.com/photos/mmirrorless

I use an old Canon mirrorless for wildlife and BIF - with old old DSLR lenses ! www.flickr.com/photos/mmirrorless

don't think - do it   (but maybe with a later, newer model) www.flickr.com/photos/mmirrorless

advanced APS-C - that can use Canon 'L' lenses www.flickr.com/photos/mmirrorless

Fashion ....  I'll vote Canon RP and  "L" portrait lenses www.flickr.com/photos/mmirrorless

no but the old sigma 30mm 1.4 non-art works fine on the Canon M5 www.flickr.com/photos/mmirrorless

depends - if for wildlife or sports increase that lens budget ! www.flickr.com/photos/mmirrorless

sure, also Canon M6ii mirrorless and a few lenses www.flickr.com/photos/mmirrorless

Canon M 6ii and 22mm f/2 www.flickr.com/photos/mmirrorless

OK www.flickr.com/photos/mmirrorless

most professional photographers prefer Canon ... your mileage may vary  :-D

probably, I use the older Canon M5 mirrorless - but I use the cell phone app for selfies www.flickr.com/photos/mmirrorless

refurbished at Canon https://shop.usa.canon.com/shop/en/catalog/refurbished-products-information

my 100mm 2.8 cannot kill a human ;-) www.flickr.com/photos/mmirrorless