I wonder how much of the difficulty in telling the difference between 2k/4k is due to the stream bit rate/quality. I have no experience with 4k content, but my blu-rays look a lot better than any video feed that I get from the cable provider because the feed is heavily compressed.
I thought my transition from EF to RF would be gradual, but it's happening faster than I anticipated. RF glass is really good, but I can't use it on my 5D4, and that's the rub. The most flexible kit is RF bodies with EF and RF glass. Just waiting for the 5D4 killer...
I "cut the cord" last spring. The modern HD antenna provides a much better image than my cable provider did (Comcast). The difference being 1080P signal vs upscaled 720P signal (or 1080i). As I got very close, I could see the difference in the 4K tv, but I normally view it at about 10-12 ft. I think that is the issue.
I've seen different variations of this chart over the years, but the overall point is that you have to be close to see the benefit of higher resolutions:
My new TV is 55" and I view it at 10-12 ft. According to this chart, I would need to be 8 ft or less to really appreciate 4K.
As for the 5DIV vs the R. From a gear perspective, I get it. My problem, I really cannot think of a shot I am missing with my current kit (5DIV, 16-35 f/4, 24-70 II, 70-200 II, 50A, 100 L macro, 100-400 II, 500 II, etc). Wildlife, got it. Landscape, great. Portraits, 5DIV is beautiful, I could see maybe another prime....
So, just loving gear, I can see going with the R, face detect, etc. But taking pictures, I am pretty set for awhile. What has actually caught my eye is the Fuji 50R.
