What are the advantages of IMAX3D over ordinary 3D?

I think digital IMAX 3D looks much better than ordinary 3D, not because the 3D effect is better, but mainly because the IMAX screen is large and bright enough (which affects the perception), the sound effect is good (the frequency is low and the volume is loud, which I feel is stronger than Dolby panoramic sound) and the color is good. Therefore, IMAX 3D is much better than ordinary dual-machine 3D experience. As for digital IMAX, the definition of projection on the big screen decreases. There are black borders on the top and bottom, so it can't be full screen (it seems that some can be full screen). This is because most digital IMAX movies are shot in 2k and converted into widescreen format, so there is no way to make up for this regret when laser IMAX has not been popularized. As for the 3D effect of the IMAX version of Gravity, I don't think it is very good either, but the IMAX screen will fill the whole field of vision, which is very suitable for expressing this theme, so it is much more shocking than other versions of 3D. In fact, the effect of commercial 3D movies has not reached the point of "entering" movies. (Avatar hasn't seen 3D, I don't know what's going on. Movies with good 3D effects are not all lenses with excellent 3D effects. There are technical reasons. Apart from commercial considerations, 3D is definitely not necessary for film creation. If so, the future 3D will not only provide visual wonders. The charm of IMAX is not only the 3D effect, but I think IMAX 2D is the essence of IMAX at this stage. (Brain supplements the bank robbery at the beginning of The Dark Knight and the hijacking at the beginning of The Rise of the Dark Knight) The IMAX 3D science and education film shot by IMAX camera is the real image of IMAX propaganda, which is maximized and crystal clear. (although I haven't seen it either) I think the ultimate experience of watching movies should be 4k laser IMAX (there should be no film IMAX in the future)+Dolby panoramic sound. I wonder if there will be such a cinema and film source.

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