I have been shooting video and photo quite extensively with my R5 this summer and got some experience, but have in mind that I'm UncleBob and not a professional. I've been so happy with it I can easily end up sounding like a Canon-fanboy. I'll try not to repeat myself raving about the autofocus, but here are some new revelations:
- 256 GB CFExpress cards run out fast shooting 8K RAW or 4k 120. It's tempting to get a 512 GB card.
- I've mostly been shooting 4k HQ and 4k 120 and I can without a doubt say that the limitation in the image quality comes from the user (me) and not from the camera.
- I haven't seen the overheat warning once, but I do live in a cold country.
- The variable ND-adapter + clog 3 makes it easy to protect highlights and I haven't had any problems fitting the whole dynamic range within the histogram (unless I'm doing stupid stuff like filming the sun).
- I love the variable ND-adapter, but it works so well for video that it also gives me some annoyances. 1) I'm hesitant to get RF glass since it won't work with the new glass. 2) It's bad for photos (except long exposures) and since I've been too cheap to get the clear drop-in filter I have to constantly switch between the filterless adapter and the ND-adapter. I would recommend anyone who is planning to shoot video with EF-glass to get the variable-ND filter adapter and the clear drop-in filter even though it's stupidly overpriced.
- Although not perfect, the smartphone-app for the R5 is quite usable. It's miles ahead of the Sony app I used to use.
- The R5 works very well as a WebCam. I set it to 1080p when I use it as a webcam, and I've been using it for 8 hours a day for months without any hick-ups.