Well, I had my heart set on an RP, but after much thought I ended up ordering the R and RF 24-105mm f/4L kit. I am hoping big time that the manual focus guide (those little arrows, not peaking) can be used with my old manual focus Takumars and Mamiya/Sekor lenses. I almost went with the 5D mark IV, but decided on the R instead. If I don't like it, I can always return it for a 5D Mark IV. Just hoping I made the right decision. My main reason for the R over the 5D Mark IV is the prospect of the new RF lenses. I've seen people do some nice work with the old EF 24-105, so the hope is that the RF version will be real nice. Anyway, wish me luck. I had to sell a whole bunch of stuff to get this, including my EF 35mm f/1.4L II and two rifles I hand built myself.