Canon R5 and Canon EF 500 F/4L IS Mark 1 FPS

[Fast Glass]

Yeah, but I know for a fact Canon is more than smart enough to allow for full performance. The 1DX III can drive it at noticeably faster FPS, and the R5/R6 can allow for 12FPS on the more modern versions of the same lens. To me this is just being typical Canon and crippling something for their own reasons. In this case buying a 13k lens.....

I know I am being kinda harsh, but it's the truth. Especially with how amazing the 1DX III. They certainly know how to make a good product if they wanted to. I remember the same thing with the 7D/5D II with the ridiculous crippling of their video features like not implementing manual controls.