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- Newsgroups: rec.arts.movies
- Path: sparky!uunet!news.univie.ac.at!chx400!josef!hafner
- From: hafner@ifi.unizh.ch (Michel Hafner)
- Subject: LD vs. Film ( was Re: Dracula - Francis Ford Coppola )
- Message-ID: <1992Nov20.114219.5915@ifi.unizh.ch>
- Organization: University of Zurich, Department of Computer Science
- References: <1992Nov15.022930.17538@wam.umd.edu> <1992Nov16.174824.9672@athena.mit.edu> <Bxyzx1.LwJ@mentor.cc.purdue.edu>
- Date: Fri, 20 Nov 92 11:42:19 GMT
- Lines: 74
-
- In article <Bxyzx1.LwJ@mentor.cc.purdue.edu> vaughan@fe744.cc.purdue.edu (jake vaughan) writes:
- >In article <1992Nov16.174824.9672@athena.mit.edu> eprice@sybase.com writes:
- >>from SUSPIRIA) but still, it's becoming very annoying that it is
- >>impossible to see so many films the way they were intended to be in a
- >>theater, on the Big Screen (at least in the United States).
- >>Laserdiscs are ok but can't compare to the real thing.
-
- I fully support this view! It's a shame these versions are not made available
- to the public in form of a few decent 35mm/70mm prints.
-
- #Laserdiscs are 'OK`!? Yes, it is true that nothing can compare with seeing a
- #film on a big screen but the quality that your getting from watching a
- #laserdisc far outweighs what your getting in most theatres.
-
- Dear Mr. Vaughan, either you have a funny definition of quality or atrocious
- cinemas in your neighbourhood or both. There is absolutely no question wether
- a high quality LD is image quality wise inferior/equal or superior to a high
- quality 35mm ( or even 16mm ) print. It is by far inferior concerning relevant
- image quality measures as spatial resolution ( sharpness ), colour rendition
- ( colour gamut ) and contrast. Unless you compare a first rate LD with a x-th
- generation print in a pitiful condition, on cheap material and sloppily pro-
- jected there is no way the LD can win image quality wise. Period.
-
- #The fact _is_ that a laserdisc image scans 425 lines of resolution on a
- #television screen (vcr is 250 for comparison) and a film at the theater is
-
- The theoretical limit of horizontal resolution for NTSC LDs is about 425 lines,
- but actual LDs are below 400 lines in most cases. The horizontal resolution of
- decent 35mm prints is well above that ( at least in the 1500-2500 lines range ).
- The same goes for the vertical resolution ( ~480 vs 1000-2000 ).
-
- #being projected from a small piece of film and being blown up to an enormous
- #size creating a grainy picture at best. Sure, I prefer a huge screen to a 40
-
- There is more or less grain depending on the film speed and format, print gene-
- ration etc.. If you compare the same print projected with a 35mm projector or
- via an LD by a Video projector on the same screen, you will notice that the LD
- image
-
- - looks downright fuzzy and unfocused
- - has all kinds of video technology artefacts ( visible scanlines, bad colour
- separation/rendition etc. )
-
- I see the difference almost every day when I compare the commercials that are
- projected in the cinemas here ( transfers from video masters that are better
- than LD to 35mm film ). These video commercials look abysmal in comparison!
- The question is not if LD can rival with 35mm, the question is if digital
- HDTV can replace 35mm or if we need an even better standard for that, if we
- want to keep 35mm image quality.
-
- #inch television screen but I also prefer a sharper image. An interesting fact
-
- 35mm is much sharper when both sources project an image of the same size.
- Besides how can LD be sharper than 35mm if it's mostly transferred from the
- very same projection prints?
-
- #Contrary to what most believe, most theatres don't have Surround sound.
- #Yes, they do have "multi-channel stereo," and the speakers _do_ surround you,
- #but this is not surround sound. Finally, the picture quality on a laserdisc
-
- I agree that digital surround from an LD is a better sound source than
- 35mm ( optical ) or 70mm ( magnetical ) conventional soundtracks. But the
- overall performance also depends on the amplifier and speaker systems installed
- and the room acoustics. Maybe you get better sound at home with LD, maybe you
- won't. The new digital systems for theaters ( CDS, Dolby-Digital-SR ) remove
- this potential disadvantage.
-
- #is far better then anything that you will see in a movie theatre. Take it
- #from me, I have done my homework and laserdisc quality surpasses anything
- #I've ever seen.
-
- Compared to other home video technologies, yes, otherwise ( studio video tech-
- nology, 16mm/35mm/70mm film, HDTV ), rubbish.
- Michel Hafner
-