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Author Topic: Shadows in the scope format. Monte L Fullmer Film God Posts: 8367 From: Nampa, Idaho, USA Registered: Nov 2004 posted 06-20-2011 12:38 PM                     Sadly, floating screens are tons cheaper to install than framed and masked screens, and I bet his venue was constructed on the economical side .. like some around here and it shows badly. There is a cheap get-around on this issue and that is to reline the back wall behind the screen with black dubetene fabric then overcut the aperture plates where the image on the screen will look full. The dubetene material should then soak up the stray light that goes beyond the edges of the screen. -Monte  |  IP: Logged Leonardo Miceli Film Handler Posts: 12 From: mexico city, Mexico Registered: Jul 2007 posted 06-20-2011 02:41 PM                     jaja LOL, I'd like that solution too, but unfortunately it would be $62Kusd x 6, and still I'll have the same problem, because the 35mm projectors will remain installed. Another question. why the same kind of shadows produced by a Christie P35GPS projector is sharper or smaller than shadows of the simplex projector? because I have another complex with the same kind of screens but with christie projectors and in there I don't have the shadows so big.  |  IP: Logged Gordon McLeod Film God Posts: 9532 From: Toronto Ontario Canada Registered: Jun 99 posted 06-20-2011 02:57 PM                     The thickness of the aperture plate material and the distance that it is spaced back from the film plane and also the focal length of the projection lens and its depth of focus  |  IP: Logged Victor Liorentas Jedi Master Film Handler Posts: 800 From: london ontario canada Registered: May 2009 posted 06-20-2011 02:57 PM                     I am certain it's worse on the Simplex machines because the aperture plates are further away from the film in the gate and perhaps your lamp focus is a bit off.  |  IP: Logged Monte L Fullmer Film God Posts: 8367 From: Nampa, Idaho, USA Registered: Nov 2004 posted 06-20-2011 03:30 PM                     Ya, those Christie double aperture openings on the P35's are so close to the film plane that very little shadow is created.  |  IP: Logged Michael Brown Phenomenal Film Handler Posts: 1522 From: Bradford, England Registered: May 2001 posted 06-20-2011 03:39 PM                     Interesting photo from flickr of the former elephant and castle Odeon. "Former Odeon / Coronet Elephant & Castle - the "floating" screen has no masking at the top or bottom but had two black panels which rotated around from the back of the cinemascope screen to mask the sides for standard ratio." http://www.flickr.com/photos/stagedoor/365965089/  |  IP: Logged Monte L Fullmer Film God Posts: 8367 From: Nampa, Idaho, USA Registered: Nov 2004 posted 06-20-2011 03:51 PM                     Now, look at this one: maybe this place has some anti-reflective back drapery to hide the shadows if the scope image filled the screen. But, they could have had projectors with excellent usage of apertures where there was slight bleedover on the sides to where it was a good image. The "floating screen" concept was designed to have small lights surrounding the left/right edges to give it an appearance of a drive-in screen with the sun behind it at dusk. (Be a good screen for digital though....)  |  IP: Logged Michael Brown Phenomenal Film Handler Posts: 1522 From: Bradford, England Registered: May 2001 posted 06-20-2011 04:44 PM                     Thanks for posting the picture, I just posted the link because I couldn't find the upload button anywhere, am I going mad?  |  IP: Logged Monte L Fullmer Film God Posts: 8367 From: Nampa, Idaho, USA Registered: Nov 2004 posted 06-20-2011 05:11 PM                     You click the "click here to upload an image" link below the text entry window and follow instruction on how to post pixs here. I went to that page that you attached the link to and right click and save the pict to the HD and went from there. Luckilly, it was smaller than the required pixel size, otherwise I'd had to wait until I got to a computer with a pix editor to resize per site requirements. good luck - Monte  |  IP: Logged Louis Bornwasser Film God Posts: 4441 From: prospect ky usa Registered: Mar 2005 posted 06-20-2011 08:31 PM                        Remember, with masking it is OK to have picture 6 inches into the material; that is why it is black. Louis  |  IP: Logged Frank Angel Film God Posts: 5305 From: Brooklyn NY USA Registered: Dec 1999 posted 06-20-2011 09:02 PM                        Well if the floating screen is the same as this picture, then with a correctly sized lens, the scope picture should over-shoot the screen slightly so the shadow projects beyond the frame. With black velour behing the floating screen should aborb the over-shoot. The only image that would be compromised then would be the 1.85 since its left and right edges would fall on the screen. The one screen I saw like this had a unique solution to the 1.85 image problem. Two slits in the ceiling allowed two ribbons of about 6 - 8 inches each unrolled thru the slits openings in the ceiling. The velour "edges" for the 1.85 would unroll slowly out of the ceiling before the film would start. It looked weird and certainly unusual and a strange "fix' for a problem that initially is created by the silly design itself, but ultimately it did do the job. But that was only needed for 1.85 within scope width; nothing was needed for scope because it was a properly sized scope screen as in the picture above; the scope image overshot on all sides. IF, on the other hand, the theatre was using a fixed WIDTH screen (adding insult to injury), making it impossible to project scope to fill the screen top to bottom, then the ONLY other solution is to plant plastic explosives around the theatre perimeter and just blow the damn thing up.  |  IP: Logged Louis Bornwasser Film God Posts: 4441 From: prospect ky usa Registered: Mar 2005 posted 06-20-2011 09:47 PM                        You know if you work hard enough, you can forse 35mm to be bad enough that even dvd looks better. You have to work at it, though. Louis  |  IP: Logged Monte L Fullmer Film God Posts: 8367 From: Nampa, Idaho, USA Registered: Nov 2004 posted 06-21-2011 12:18 AM                     quote: Frank Angel the theatre was using a fixed WIDTH screen (adding insult to injury), making it impossible to project scope to fill the screen top to bottom, then the ONLY other solution is to plant plastic explosives around the theatre perimeter and just blow the damn thing up. like this one 6plex I know of that needs this form of distruction: On houses using a 9x18ft screen for both scope and flat - fully filled screen for both images (yes, a 2.00:1 flat aperture plate..) and the flat image looks so crowded being so vertically cropped on both top and bottom .. and framing on this is a trick to make it look decent.  |  IP: Logged

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