vk2gwk wrote in post #19103992
I bought the adapter with adjustment ring. Looks sturdy enough to me. Yesterday shooting surfers (hand held) was the first time I was about with the Sigma 150-600 on the camera. Did not feel any different from handling the 5D4. Only thing is that I find the EVF hard to read when in bright sunlight. I am wearing self tinting prescription glasses and it seems the tinting darkens the EVF more than reading the optical viewfinder of the 5D4. But I'll get used to that I think.
Thank you. I'm going from 5D IV to R5, so good to hear that you're not feeling any difference between the two in terms of handling. I'm sure, though, the R5 is a huge improvement in terms of AF tracking and over all IQ.