There are many discussions about resolution for DI process.I understand that necessary resolution limit for 35 mm scan is 4K to keep all of detail or 6K for avoiding aliasing.OK.In case of digital projection more pixels of resolution is necessary for larger screens and theaters to see benefit in regard of 35mm film projection.
But...What happen with resolution if 4K or 6K scan (or RED RAW 4K) would be transfered to 35 mm with ARRILASER?Is it limited on 4K as camara negative?Or it would be some resolution as a release print in IP/IN process, less than 2K?
It's not just the resolution loss of going to an IP & IN, there is the loss due to going onto a print after that and then projecting it (due to gate weave, jitter, lenses, focus, etc.). On the other hand, if the chain is "lossy" then there is even more reason to start the chain at the highest practical level.
I've heard reports that 35mm print projection is in the 1K resolution range, which is why 2K digital projection tends to look sharper to our eyes, close to what optimal answer print projection looks like in terms of sharpness.
On the other hand, 35mm print projection (we're talking about a postage stamp frame afterall being enormously magnified) is pushing it for larger screens -- back in the 1980's, you would have seen 70mm release prints in many of those theaters. So even 2K digital projection is not quite enough for larger screens unless you sit near the back and defacto turn it into a smaller screen. What we need is 4K projection for the largest screens and 2K for the smaller venues.