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TOPIC: Reflective Cleaning

Reflective Cleaning 02 Mar 2001 14:14 #1329

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I would just like to get some views on what the best thing to clean reflectors would be. I've gotten a lot of suggestions. I don't have the manufacturer's manual. I have gotten a dry cloth, lens cleaner & lens tissue, and rubbing alchohol & cotton cloths. Which one is best or is there something better?
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Re: Reflective Cleaning 02 Mar 2001 17:45 #1330

I used soft cloth and alcohol with a spray trigger this was with stainless steel reflectors. 90% alcohol or denatured works the best.denatured works good on port glass too. be careful with any type of front surface material alcohol might remove the finish
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Re: Reflective Cleaning 02 Mar 2001 20:15 #1331

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I can't imagine there being any gunk on a relector. I would caution against using any kind of cleaner unless you remove the lamp first. I would just use a soft cloth.
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Re: Reflective Cleaning 05 Mar 2001 19:30 #1332

Large the Gunk that always built up on ours was weekly dust because they were verticle mount lamps and yes no lamp was installed while cleaning.
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Re: Reflective Cleaning 08 Mar 2001 09:48 #1333

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For loose dust, gently brush it off with a clean camels hair brush, or use a vacuum (e.g., "Dustbuster") with a clean, soft brush.

If you have a scum or "gunk" on the reflector, use a cleaner especially formulated for coated optics. Pure (>91%) Isopropyl rubbing alcohol works well too. The dichroic "heat mirror" coatings are very fragile, so be careful. Lens tissue or very clean cotton cloth (e.g., washed cotton baby diapers) work well. Never use harsh solvents or powdered cleansers. Many times the "gunk" or haze on optics in a theatre comes from the cooking and popcorn oil that gets in the air. Likewise, smoking should be a no-no in the booth, as the "tar" gets on the optics.

John P. Pytlak, Senior Technical Specialist
EI Worldwide Technical Services
Research Labs, Building 69
Eastman Kodak Company
Rochester, NY 14650-1922
Telephone: 716-477-5325 Cell: 716-781-4036 Fax: 716-722-7243
E-Mail: This e-mail address is being protected from spambots. You need JavaScript enabled to view it
Website: http://www.kodak.com/go/motion
John P. Pytlak, Senior Technical Specialist
Customer Technical Services
Entertainment Imaging
Research Labs, Building 69, Room 7525A
Eastman Kodak Company
Rochester, NY 14650-1922
Telephone: +1 585-477-5325 Fax: +1 585-722-7243
E-Mail: This e-mail address is being protected from spambots. You need JavaScript enabled to view it
Website: http://www.kodak.com/go/motion
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