[Tig] Digital Negatives [was HIGH DEFINITION]

Steve Hullfish steve.hullfish
Fri Jul 19 13:48:30 BST 2002

When I get home, I can post an entire interview I did with Stephen
Nakamura on this exact subject for a book I'm writing. He did the DI for
"Panic Room" and there was definitely a whole different pass for the DVD
transfer to accommodate for video's limitations, but there are still
speed gains to be made by doing the DI and video transfer kind of
together. There's also an interview with Peter Mavromates (spelling?)
who was the post sup on that film.

Chris Noellert wrote:
> >> In principle, doing the DI film grade doesn't get you any farther along
> >> towards video
> >> than having a properly timed IP.
> >
> > I would disagree with that, because DI grading makes use of all the tools that
> > aren't
> > available in lab colour timing. One could argue that a lot of the windows /
> > secondary
> > grading and just general experimenting and fooling around should have been
> > done in the DI
> > and wouldn't need to be re-done.
> >
> Actually Peter, I think he's right.  When you grade an IP for a video
> release typically you're not doing creative grading for the sake of deciding
> the look of a film, you're doing what might be called problem solving
> grading where you're trying to preserve the experience of what was seen in
> the theater on the big screen when it's played on a 28" TV set.  The
> experience between that big screen and the TV is a quite different thing and
> regardless of method, whether it's an IP via DI or the traditional route
> doesn't really matter. There are inhererent differences between the formats
> the least of which is color space, gamma and contrast ratio other than the
> obvious size (and destination aspect) of the pictures you're grading.
> Arguably doing a scope feature in DI gets you no closer to a 4x3 pan and
> scan version than the traditional lab route would.  Also I don't really
> believe in the concept of output luts being an automagic way of producing
> the various formats required.  There no lut that can accommodate for the
> perceptual difference between a 40m screen and a 32" TV.
> But on the flip side I think Peter is saying that rather than grade the
> final IP for SD masters that you could "tape to tape" the DI master down to
> standard definition, which would provide a far superior SD version once the
> grading was completed.  But this would still require another grading session
> for the reasons stated above, but should yield better results.
> So I guess the question is: Which is easier and provides the best results?
> "Tape to Taping" a DI master (in either data or HD) down to SD or TK'ing a
> final IP from the lab or TK'ing a final DI IP?
> Or maybe I missed the point...
> Chris
> ---------------------
> Chris Noellert
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