Originally Posted by Ohlson
I am talking about capturing at 48fps and you can display at whatever multiple of 48Hz of your choosing. It is about the capture not about the display rate.
I understand what you're saying. But Joe Public doesn't care. I'm saying what really matters is display rate and refresh rate. Maybe ONE person out of a hundred, if that, if you gave them a survey after a movie could tell or care and it made a big difference being 48 fps rather than the regular. Also, the one person who did care would probably not like 48 fps and would say, "the movie looked odd, it wasn't like watching film." A lot of the time you're sitting one screen width or closer at a movie theater, people at that distance can see a difference between 4k and 2k, especially if you make it Imax size and ~0.8x seating distance.
Also my point was the technology needs to be better than DLP to realize the difference in FPS. Currently DLP is nowhere near CRT or even plasma refresh and response. Poor refresh and response results in reduced spacial resolution, and in turn makes your images look effectively a lesser resolution.
Another thing, 48 fps is bad because it breaks home theater setups. Blu-ray doesn't have a 48 fps because 48 fps isn't part of SMPTE. Let's say you add it, now what? Lots of displays show 24p film at 72 hz. Many US displays don't show 50 hz PAL. You can't convert 48 hz to 3:2 and show on 60hz. You've just broken watching film on nearly all US televisions. Even on a PAL tv, 48 -> 50 hz has to either be:
1) an extra two frames per 50 resulting in a jerk
2) sped up to 50 hz and making the movie longer and higher pitched
3) same as #2 but pitch corrected.
All three of those solutions are very easily noticed. I once watched a PAL 48 hz -> 50 hz version of a 24p movie. It drove me nuts, more so than 3:2 judder.
You can't just take away every other frame either. Some movies would rely on special effects that would look horrid if you did that. One easy test is take the Nintendo Entertainment System's Super Mario Bros. Hook up the NES to a tv capture card, which will show 30 fps, the NES is 60 fps. Become Super Mario and get hit. On a CRT NTSC tv, you'll see Mario flicker, on the capture card at 30 fps, Mario disappears! So you break how the movie looks and it can be unwatchable for home viewing on TVs.