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Topic: Projection Port Glass Cleaning.
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Aaron Sisemore
Flaming Ribs beat Reeses Peanut Butter Cups any day!
Posts: 3061
From: Rockwall TX USA
Registered: Sep 1999
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posted 01-22-2001 08:46 PM
Another source would be Optical Coating Lab:
http://ocli.com The portglass for the Phoenix and a few other theatres i have worked with came from there. Aaron
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Mark Ogden
Jedi Master Film Handler
Posts: 943
From: Little Falls, N.J.
Registered: Jun 99
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posted 01-22-2001 10:19 PM
Let me recommend a few glass cleaning products that I have used to good result: We used to use a great product called "Clear-Vue" that was a homebrew from some plate glass company in New England. Absolutly would not streak at all, and got off the schmootz that Windex left behind. You used to be able to buy in bulk at Costco, but it's vanished from the shelves (although I hear that it's now known as Turtle Wax Auto Glass Cleaner which I assume is available at your local auto supply). Apart from that, I picked up a can of something called Sprayway at Restoration Hardware not long ago, and it really went to town, it's a kind of foam stuff and again it left no streaks at all (and it also did a helluva job on my windshield too). Cool!
By the way, try a trick I was shown in my apprentice card days: if you can't get to McDonald's to boost their napkins, try using wadded up newspaper as your wiping material. It sounds unlikely, but it works fine, and no lint!
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Steve Guttag
We forgot the crackers Gromit!!!
Posts: 12814
From: Annapolis, MD
Registered: Dec 1999
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posted 01-28-2001 05:47 PM
The better quality glass really does make a difference. The biggest jump is from plain glass shop plate to something near optical quality. The regular plate glass is way too green. Look at the glass on the edge, if it is green, so will be your picture. Of course, there is a point of diminishing returns of getting lens quality glass. Next, the optical coatings really do work and are a benefit in many ways. First you don't waste as much light on the glass and more goes through. With double ports this also helps keep multiple images down. Double ports should become the standard. A single pain just isn't enough to keep the film noise down. The better designed ports make cleaning both pieces quite easy from within the booth (no ladders). Steve ------------------
"Old projectionists never die, they just changeover!"
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Paul G. Thompson
The Weenie Man
Posts: 4718
From: Mount Vernon WA USA
Registered: Nov 2000
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posted 02-02-2001 09:42 PM
Scott, Lense tissue works for lenses and is the only thing to use. Toilet paper works great for "something else"  Toilet paper is too course and will scratch the lense coatings. I hope you didn't read me wrong.Of course, you are correct by not cleaning a lense any more than necessary.  Oh, by the way - when I clean lenses, I use two or three thicknesses so that any oil that may be on my fingers will not soak through and get on the lense, especially if I have to use lense cleaning fluid. Some may think it is a waste, but I don't. I haven't used the McDonald's napkins yet, but I have used those brown paper towels first with rubbing alcohol, followed up with dry towels. Lots of wiping to do, but the results were very good.
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