Originally Posted by Franin
It will be interested to see weather they have used the Imax shot on BD.
We know the IMAX shot scenes will be on the BD, probably cropped to 1.78.
Hopefully they're not taking the 2.35 35mm upscaled (and processed) to 70mm for IMAX and scaling that back down to 1920x817. Instead going directly 35mm -> 817p.
It seems really lazy to shortcut that.
IMAX DMR® starts by scanning, at the highest resolution possible, each individual frame of the 35mm film, converting them into digital images.
Next, image enhancement tools are used to optimize each image for printing on to 70mm film.
Some of the techniques used to enhance the digital image include sharpening, colour correction, grain removal and eliminating unsteadiness
The enhanced digital signal is then recorded onto 15/70 film resulting in a visual presentation which, when projected on IMAX®'s projection system you have bright, crisp, steady and absolutely stunning images
So you take 35mm film, sharpen it, remove grain, upscale to 70mm. Then you use that to be scaled back down below 35mm to 817p on BD.