This somewhat dated article about IMAX from indepthcine is interesting, especially the digital sensor content and the IMAX approved cameras. You can see how the Cine 17K can get a foot in the door and I hope BMD announces some relationship with IMAX when the camera officially launches in 2025.
https://www.indepthcine.com/videos/imaxHow BMD will respond to the two IMAX aspect ratios (1.43:1 and 1.9:1) and current IMAX projector limitations (2K and 4K) remains to be seen.
Obviously IMAX film cameras with a frame height about 48.5mm are rare and result in shallow depth of field. Tim has offered us a possible digital 15 perf digital sensor to directly satisfy this look, but that seems a bit of a stretch in 2025.
Will the digital sensors compare favorably to IMAX film colour? If the answer is “No” maybe the ability to record at high resolutions and faster frame rates will still make the results irresistible… if projectors match at least 8K as Tim suggested.
It does feel like IMAX is on the precipice of 1967 deja vu. 2027 is sixty years later when this may be finally answered.