|
|
|
|
Author
|
Topic: Is THX still relevant?
|
Edward Havens
Jedi Master Film Handler

Posts: 614
From: Los Angeles, CA
Registered: Mar 2008
|
posted 03-06-2011 02:05 PM
It appears less than 150. I went to THX.com and did a 500m search from various major metropolitan areas, and this is what I came up with...
500m from: Los Angeles - 53 results, ranging from Los Angeles to Tucson to San Francisco Seattle - Denver - 8 results, ranging from Denver to Salt Lake City to Wichita KS to Cordell OK Dallas - 9 results, ranging from Midland TX to Corpus Christi TX to Springfield MO... but four of those results are in the same 500m range as Denver, including the aforementioned Cordell OK Minneapolis - 13 results, ranging from Minneapolis to Des Moines to Milwaukee to Chicago to St. Louis to Grand Rapids MI to South Bend IN Cincinnati - 27 results, from Cleveland to Greenville SC to MIssissauga ONT to Washington DC, but several results that are in the same 500m range as Minneapolis and one result that is shared with Dallas Boston - 23 results, from Boston to the New York tri-state area, but again matching several results from the same 500m radius as Cincinnati. Bonus factoid: there is only one THX certified theatre left in the five boroughs of New York City, the Bay Plaza in the Bronx. Orlando - 5 results, from Orlando to Miami to Montgomery AL, but including two results from the Cincy search Anchorage - One result, in Anchorage Honolulu, Hilo and Lihue HI - All zero results
It also appears that the theatre in MIssissauga is the only THX certified theatre left in Canada. Searches from Edmonton, Winnipeg, Thunder Bay and Montreal all show either American installations or the one in MIssissauga.
| IP: Logged
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Steve Guttag
We forgot the crackers Gromit!!!

Posts: 12814
From: Annapolis, MD
Registered: Dec 1999
|
posted 05-12-2011 10:35 PM
On film...CinemaScope definitely did increase resolution. One used more film area.
In digital, the source image for scope is actually smaller than for flat. So scope in theatres with a wider scope image (as the format was intended but not necessarily how it is installed in "modern" theatres" has a smaller image, less resolution, than flat. The Scope image in digital is a mere 2048x858 pixels in size.
DCI prohibits a file having non-square pixels. Now I don't know if that would preclude using an anamorphic lens on the camera since the pixels would actually be square, it is the image that is non-square.
A common misconception is that DCI somehow precludes using anamorphics in projection...that is not the case. It is required that if you use an anamorphic lens (or any multi-lens system) that the change be "automatic" (I wonder how Real-D got out of that one...though Strong does make a motor system that works with Real-D...either Z or XL). The other section that deals with anamorphics (more specifically, though not called out by name) is that any scaling to deal with constant-height screens must not introduce visible artifacts (it doesn't specify where the "visible" part is to be judged). I would contend that any keystone, barrel distortion from curved screens and even lens shifting causes greater visible artifacts (note, on a lens shift, you inherently create non-square pixels as the linearity of the image changes with the shift).
I have not seen an anamorphic on a 4K but on a 2K, the resolution is not diminished as all pixels are clearly reproduced...however one can tell, under close inspection, that they are no longer square and that some amount of softening has occurred, depending on the lens and how well it is set up.
What anamorphics bring to DCinema on the projection side is light efficiency. On the order of 23%. Which is huge and can often change what size lamp one needs, particularly on 3D. Again, this would apply to those with constant HEIGHT screens. No advantage can be had on constant width screens.
-Steve
| IP: Logged
|
|
|
|
All times are Central (GMT -6:00)
|
This topic comprises 12 pages: 1 2 3 ... 8 9 10 11 12
|
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.
|