|
This topic comprises 3 pages: 1 2 3
|
Author
|
Topic: Lost in Translation Aspect ratio..
|
|
|
|
|
Tao Yue
Expert Film Handler
Posts: 209
From: Princeton, NJ
Registered: Apr 2001
|
posted 02-12-2004 06:36 PM
Of course, many anamorphic DVDs of flat films are not letterboxed to 1.85, but opened up to 16:9.
Kind of surprisingly that this wasn't mentioned, given that Paul and Paul mentioned all of the following:
- Letterboxed standard (widescreen film in 4:3)
- Windowboxed standard (very special non-widescreen film in 4:3)
- No-boxing-at-all standard (non-widescreen, pan-and-scan, or open-matte in 4:3)
- Letterboxed anamorphic (wider than 16:9 in 16:9)
- Windowboxed anamorphic (non-widescreen in 16:9)
Anamorphic is really poor terminology, not just because of the confusion with widescreen achieved by matting. In fact, not just 16:9, but also 4:3 films on DVD are anamorphically stretched on display (but in the other axis, and more mildly -- by 12% rather than 33%). "Enhanced for widescreen TVs" is much better wording, and removes both the confusion and the technical inaccuracy. The Widescreen Museum has a good page on anamorphic vs. standard encoding at: http://www.widescreenmuseum.com/special/caveat_emptor.htm and Marty, being his usual thorough self, is one of the few people to actually point out that DVD players interpret the pixels as narrow or wide, never square.
| IP: Logged
|
|
|
Carl Martin
Phenomenal Film Handler
Posts: 1424
From: Oakland, CA, USA
Registered: Feb 2002
|
posted 02-17-2004 04:43 AM
"widescreen" is a term i wish would just go away. theatrically, widescreen aka 1:1.85 is generally not as wide (horizontally) as scope, and probably a majority of screens support just those 2 ratios. on most tv's, "widescreen" signifies a letterboxed image which is just as wide horizontally as "fullframe", but narrower vertically. i think the term can sometimes include any flat ratio with more cropping than academy, in other words, less image area on the film, not more as one might think from the "wide-". and probably some people, at least when it comes to video, use it to describe the scope ratio as well. it's a dumb catchall euphemism that when all is said and done means nothing. no, worse than that, it means the opposite of something!
carl
| IP: Logged
|
|
|
|
|
|
|
John Pytlak
Film God
Posts: 9987
From: Rochester, NY 14650-1922
Registered: Jan 2000
|
posted 02-26-2004 10:23 AM
Non-anamorphic ("flat") films today are most often shot with a full frame camera aperture, with an image area on the negative of 0.981 x 0.735 inches ("Style C" camera aperture), but the image composed for the projectable image area (0.825 x 0.446 inches for 1.85:1) using the reticles in the camera viewfinder. A "Style A" camera aperture may also be used (0.864 x 0.630 inches, per SMPTE 59).
The composite print picture aperture width in a contact printer is 0.88 inches (SMPTE 111), but the framelines of the camera negative are printed through unchanged. "Hard Mattes" are sometimes introduced at the MP ---> DN stage of printing, but the framelines on the print often are the framelines exposed on the original camera negative (unless an optical printer or digital intermediate was used for duplication).
The image area that ends up on the screen is specified by SMPTE 195, and determined by the projector aperture, screen masking, and framing. The image area on the print is always larger than the projectable image area specified by SMPTE 195 for the current 2.39:1, 1.85:1, 1.66:1, and 1.37:1 aspect ratios specified in the standard.
| IP: Logged
|
|
|
|
|
All times are Central (GMT -6:00)
|
This topic comprises 3 pages: 1 2 3
|
Powered by Infopop Corporation
UBB.classicTM
6.3.1.2
The Film-Tech Forums are designed for various members related to the cinema industry to express their opinions, viewpoints and testimonials on various products, services and events based upon speculation, personal knowledge and factual information through use, therefore all views represented here allow no liability upon the publishers of this web site and the owners of said views assume no liability for any ill will resulting from these postings. The posts made here are for educational as well as entertainment purposes and as such anyone viewing this portion of the website must accept these views as statements of the author of that opinion
and agrees to release the authors from any and all liability.
|