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Author Topic: Screen Material Joshua Lott Expert Film Handler Posts: 246 From: Fairbanks, AK, USA Registered: Nov 1999 posted 07-08-2003 11:25 PM                        What types of material have you used for screens? I am planning something for this winter and was wanted to use snow. Has any one tried this?  |  IP: Logged Stephen Furley Film God Posts: 3059 From: Coulsdon, Croydon, England Registered: May 2002 posted 07-09-2003 03:28 AM                     Not film projection, but I have seen those things made for stage use, that project gobos and effects via a movable mirror in front of the lens projected onto snow, seemed to work ok. I think you would need to keep the audience a fair way back from the 'screen'. Just a thought, we could show 'A Night to Remember' projected onto an iceberg.  |  IP: Logged John Pytlak Film God Posts: 9987 From: Rochester, NY 14650-1922 Registered: Jan 2000 posted 07-09-2003 07:54 AM                        Snow should work well as a screen (fresh snow is pretty white, after all ), except that it's likely to scatter rather than absorb the light internally, which is likely to cause a "halation" effect (halos around light objects) and reduce sharpness and image contrast.  |  IP: Logged Philippe Laude Film Handler Posts: 79 From: Longueville, Belgium Registered: Jul 99 posted 07-09-2003 08:40 AM                     Horizontal screen? hmm, interesting  |  IP: Logged John Pytlak Film God Posts: 9987 From: Rochester, NY 14650-1922 Registered: Jan 2000 posted 07-09-2003 08:47 AM                        I suspect Joshua plans on making snow blocks, kind of like the wall of an igloo.  |  IP: Logged Gordon McLeod Film God Posts: 9532 From: Toronto Ontario Canada Registered: Jun 99 posted 07-09-2003 11:27 AM                     Since Igloos are domes is he going to put in a Omnimax  |  IP: Logged Joshua Lott Expert Film Handler Posts: 246 From: Fairbanks, AK, USA Registered: Nov 1999 posted 07-09-2003 08:54 PM                        I wasn't sure exactly how it is going to be built. I will be experimenting with it this winter though. John P. how would I go about reducing the halation effect? This would be for projecting movies, not lighting effects.  |  IP: Logged John Pytlak Film God Posts: 9987 From: Rochester, NY 14650-1922 Registered: Jan 2000 posted 07-09-2003 11:18 PM                        quote: John P. how would I go about reducing the halation effect? Spray on a white reflective surface, like white latex paint. You don't want the light getting in and bouncing around the ice crystals.  |  IP: Logged Philippe Laude Film Handler Posts: 79 From: Longueville, Belgium Registered: Jul 99 posted 07-10-2003 08:14 AM                     John, why use snow if you cover it with paint? Do you want to run "The greatest snow on earth"?  |  IP: Logged Dick Vaughan Phenomenal Film Handler Posts: 1032 From: Bradford, West Yorkshire, UK Registered: Jul 2000 posted 07-10-2003 08:25 AM                        Gordon In that case why not lend him a print of "Snow Job" from Ontario Place.  |  IP: Logged

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