I recently watched TPM blu-ray and thought I would register and ask you guys about the DNR issue. I noticed the film was grainless and looked soft but for the most part it looked great to my eyes. Now I always remember the film looking soft overall which is what makes me think made the DVD look terrible. Out of curiosity, I wondered if they used the source for the 1999 digital projection (an IP, same source as the DVD) and found this:
http://legend3d.com/sites/default/files/articles/fxguide%20Online%205%208%2012.pdf
Which is about the 3d release and it has this interesting piece of info:
There needed to be two new color timing parts to the show and Knoll used this opportunity to upgrade all the material, since when Episode I was originally finished, it was done on a per shot basis – “done sort of old style, final a shot, film out a shot, look at a print of that negative and that’s what we would final”. It went through a conventional negative cut. An optical timed IP was generated from that and then then master printing negatives were made from that timed IP. So everything audiences saw in the theater was two generations down from the original.
“When the original DVD was released,” Knoll says, “it came from scanning in the timed IP because it was the simplest thing to do. But when it came time to do [the conversion], we were going to take the movie and cut it up into 2,000 separate pieces, work on them and re-assemble it, we had an opportunity to go back to the original material. We could go back to the original film-out tapes that are a couple of generations better than what had been seen. So we figured let’s do that. We made a concerted effort to collect all the bits, re-create all the dissolves and pre-wipes. So that was all pre-graded material, so we had to do all new color timing, just to have the new Blu-ray master. Then there is a device-dependent color timing that’s done to compensate for the light loss that comes from stereo.”
TPM (like the first LOTR:FOTR blu-ray) did not use a DI but almost the entire film was scanned at 2k to apply visual effects. This footage was then output to an internegative which went through a traditional negative editing process including what sounds like optical wipes. An interpositive was created from this and both the digital and DVD versions were sourced from this IP.
For the blu-ray, they went back to the film-out tapes. The only scene that was not digitally manipulated was a quick shot of a gas vent in the beginning. That scene would have been scanned and the film re-assembled from the film-out footage, and he is saying the re-did the dissolves and wipes digitally. This means, by the way, that the blu-ray even without the alterations is different from the original theatrical release.
A close-up of Qui-Gon made the rounds last year as an example of bad DNR. But that particular scene (along with the scene where Anakin's blood is analyzed) were filmed digitally on a Sony HDC-750 as a test for the other prequels being filmed digitally. From what I can dig up, the HDC-750 has a CCD resolution of 1920x1035 and stores to the older HDCAM format which is 1440x1080 (1080i, it's interlaced) interpolated horizontally to 1920x1080 on output. So it looks like crap because it was filmed on a crap prototype digital camera.
When I watched the film, I noticed that it looked soft in some scenes and sharper in others. According to the technical info on imdb, some scenes were shot on Vista Vision cameras. I don't think during shooting George intended to digitally alter 98% of the film (which would require nearly the entire film to be scanned which then would have been 2k). The Vista Vision footage would appear sharper.
If it is badly DNR'd, is it badly DNR'd enough to destroy the extra detail (and then some) that it received from being 2 generations closer to the source? Or are people comparing the clean footage to the grainy IP-sourced footage and their eyes are fooling them into confusing the grain for detail? Most reviewers who reviewed the set claimed that TPM should look better than the prequels because it was sourced from film. If 98% of it was scanned in at 2k for effects work, that's not true. Not without re-rendering the CG and re-compositing the whole film. That they didn't do it for the 3d version (which probably would have helped, they say they don't use that software anymore) means TPM is like any other film made in the last 10 years with a 2k DI. Stuck there for a long time, if not forever.
I can't find any detailed shots to compare except for comparing it to the DVD (which of course it looks better than). It's been DNR'd but not with a detail-destroying filter. It went through the Lowry de-graining process. (which would help the 3d conversion too). So I'm wondering, is there really additional detail in the HD version floating around, or is the eyes playing tricks on the viewer from confusing grain with detail?