I started with a Sony [ASPC] Nex5 and a not-so-great prime 20mm 35mm equiv. lens and got pretty darn good results. I’ve been testing with a GoPro spherical array (from my 360 video shooting days) and am impressed with the results and will also be using a GoPro for drone shooting.
But general rule of thumb is better the camera, better yield in RC. I’ve shot with a Sony [ASPC] 6300 and and [Full-Frame] 7rii and they were sooo much better than the excellent Nex5 results that I decided to upgrade.
I’ll be getting a 6500 as it has in camera stabilization and I can use some existing lens sets and a whole kit that is rather light. I’ll be getting the 10-18mm zoom lens (I dropped and broke my prime) with image stabilization as well. I’d say for most people a 7r or a 7 ii is excellent, as is any modern camera 1" or higher sensor.
The image stabilization stuff is generally something you don’t need or want in RC shooting (I think, other people may correct me on this and I’d listen to them). But I have found myself doing a great deal of outside and inside shooting that requires some solid exposure times shooting at F11 with no tripod in sight - so I’m losing a little bit as the camera will do some focus breathing, but it’s far better than the blurfest images I was getting with my Nex5 prime without image stabilization. If you do find a good wide angle zoom lens that you want to use, you’ll probably have to tape down the zoom ring as if that changes on a shoot it can really put a damper on the RC reconstruction.