my profile | my password | search | faq & rules | forum home

» Film-Tech Forum ARCHIVE   » Operations   » Film Handlers' Forum   » blurred image in one side of the screen (Page 1)

This topic comprises 2 pages: 1  2

Author Topic: blurred image in one side of the screen Mike Moreno Expert Film Handler Posts: 200 From: culiacan sinaloa mexico Registered: Jul 2008 posted 11-02-2009 10:55 PM                        i have a problem in one of my big screens, i can´t make the image look sharp, if i focus the subtitles ( remember im in mexico) the image looks blurred on top of the screen. i tried the procedure y found here on tips.and also check the film gate but still the same im using a big sky console with a ernemann 15 projector. thenks for your help. mike morneo mexico.  |  IP: Logged Mike Blakesley Film God Posts: 12767 From: Forsyth, Montana Registered: Jun 99 posted 11-02-2009 11:27 PM                        Is your projection booth much higher than the screen? If so, and the screen is not 'angled' toward the projector, you may have a keystoning problem. When you're seeing a "square" image on the screen, like a building, do the sides of the building seem to flare out at the bottom? If so...that's the issue.  |  IP: Logged Jon Miller Jedi Master Film Handler Posts: 973 From: San Diego, CA, USA Registered: Sep 1999 posted 11-02-2009 11:45 PM                     Prints with laser-etched subtitles can be a pain to focus perfectly since the subtitles are not in the same plane of focus as the emulsion. Getting a good compromise between the picture and the subtitles is difficult; a steep projection angle just makes things worse.  |  IP: Logged Mike Moreno Expert Film Handler Posts: 200 From: culiacan sinaloa mexico Registered: Jul 2008 posted 11-03-2009 12:31 AM                        mike, yes the projection booth is too high and the screen is tilt back and i can see the keystone, but i have another screen exactly like this one and i dont have this problem. jon, the subtitles are a pain in the... i dont know why sometimes they screw the movies with an ugly subtitle print. maybe they don´t care the latin american market.  |  IP: Logged Cameron Glendinning Jedi Master Film Handler Posts: 845 From: West Ryde, Sydney, NSW Australia Registered: Dec 2005 posted 11-03-2009 01:19 AM                     Is this only on scope, or does it effect flat as well?  |  IP: Logged Mike Moreno Expert Film Handler Posts: 200 From: culiacan sinaloa mexico Registered: Jul 2008 posted 11-03-2009 05:58 PM                        you can see theprobem in flat and scope. but is most perceivable in scope  |  IP: Logged Bill Enos Film God Posts: 2081 From: Richmond, Virginia, USA Registered: Apr 2000 posted 11-03-2009 06:40 PM                     I have a similar problem with our 14 degree down angle and 38 meter throw. You almost have to focus on the subtitles because if they look out of focus it will be much more apparent and your customers will assume the whole picture is out of focus. Our French Film Festival patrons are extremely critical and are usually satisfied if the subtitles are sharp.  |  IP: Logged Jon Miller Jedi Master Film Handler Posts: 973 From: San Diego, CA, USA Registered: Sep 1999 posted 11-03-2009 07:36 PM                     quote: Mike Moreno the subtitles are a pain in the... i dont know why sometimes they screw the movies with an ugly subtitle print. maybe they don´t care the latin american market. Focusing headaches aside, laser subtitling is the only efficient way I know of to get subtitling done for short print runs. I can't say it's about not caring about a particular market; it's about how to easily cater to a foreign market...and, yes, even in the USA where subtitled Asian, European and Latin American movies draw in big crowds at film festivals.  |  IP: Logged Gordon McLeod Film God Posts: 9532 From: Toronto Ontario Canada Registered: Jun 99 posted 11-03-2009 07:53 PM                     Actually I think the DTS CSS system would be cheaper if the print has timecode on it  |  IP: Logged Jon Miller Jedi Master Film Handler Posts: 973 From: San Diego, CA, USA Registered: Sep 1999 posted 11-03-2009 09:17 PM                     And that's a big “if”...in my dozen or so years of film festival work, I've seen only about four prints with DTS timecode, and only one with a DTS disc in the box. With festival prints, to paraphrase Henry Ford, you can have any digital soundtrack you want as long as its Dolby Digital.  |  IP: Logged Monte L Fullmer Film God Posts: 8367 From: Nampa, Idaho, USA Registered: Nov 2004 posted 11-03-2009 09:48 PM                     Have you checked for trap and gate focus with RP40 by removal of aperture plate? the lenses could be not square with the projector and the whole system may not be square with the screen.  |  IP: Logged Eric Robinson Jedi Master Film Handler Posts: 538 From: Santa Rosa, CA Registered: Jan 2005 posted 11-04-2009 12:57 AM                     Is this a recent problem or has it always been a problem since day one?  |  IP: Logged Mike Moreno Expert Film Handler Posts: 200 From: culiacan sinaloa mexico Registered: Jul 2008 posted 11-04-2009 03:10 PM                        i think is a very old problem (since we opened) but at the beginin i didnt know anything about pojection booth. i check taking out the film gate and using another and nothing. and also use a RP40. i think that maybe can betha screen frame or maybe the projector is not really aligne with the center of the screen..... mmm i dont know  |  IP: Logged Demetris Thoupis Phenomenal Film Handler Posts: 1240 From: Aradippou, Larnaca, Cyprus Registered: Apr 2001 posted 11-04-2009 03:51 PM                     Mike the problem is the laser subtitling and nothing else. We have the same issue in some theaters in Cyprus and unfortunately you can only compromise unless you find a way to shift the lens holder so it is not completely vertical with the film gate. A small shim will do the trick and you will gain a better focused picture. You are looking to tilt the lower part of the lens holder outwards but only a bit (a few milimeters are enough). Of course you will need to re-align the lenses then. Demetris  |  IP: Logged Richard Fowler Film God Posts: 2392 From: Ft. Lauderdale, FL, USA Registered: Jun 2001 posted 11-04-2009 04:47 PM                     If you have an E15 lens turret with the silver support post, it may be out of square to the film trap....the weight of the turret + lenses with a downward tilt could be an issue  |  IP: Logged

All times are Central (GMT -6:00)

This topic comprises 2 pages: 1  2

Printer-friendly view of this topic

Hop To: Select a Forum: Category: Operations -------------------- Digital Cinema Forum Film Handlers' Forum Large Format Forum Ground Level Feature Info, Trailer Attachments & REAL Credit Offsets Category: Community -------------------- Film-Yak Film Handlers' Movie Reviews The Afterlife Bob Maar's Joke-A-Thon Category: Classified -------------------- Equipment and Supplies Wanted/For Sale Help Wanted/Seeking Employment Category: System -------------------- Software Beta Testing Forum

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.