I have a 5D Mark II (great camera) and a new SL2 for travel (liking it very much). I THINK I want to upgrade my 5D MKII to a 5D Mark IV for more autofocus points and an extended ISO range for my microstock photos. I am very used to the 5D series so the IV seems like it would be an easy upgrade. However, when I read through the EOS R thread I am struck by how much people seem to like that camera, and I wonder if that would be a better choice. I have read and re-read through the specs and reviews for both cameras on various websites, but I am still torn. I would appreciate input -- pros and cons. My main interests are landscapes, wildlife (local waterfowl or zoo/aquarium creatures), macros, family photos, sunsets, & local (not airline) travel. Not interested in sports or video. I'm just an amateur/hobbyist but I have always found that having the right tool for the job increases enjoyment and significantly lessens frustration! Thanks.