Rubylith® RM3 is a high-tack ruby film coated onto 300-gauge polyester. As shown below, Rubylith is normally used in graphic arts and screen-printing industries, however, it is an excellent product for amateur astronomers as well. Rubylith will produce very consistent results when used to create a night-safe red light out of normal white lights, unlike most "quick-fix" materials we've tried, such as red tape, paint, and thin cellophane. Since it is bound to 300 gauge polyester, it holds it's shape well when cut and is easy to work with.
OPT Rubylith Film
Here's some more traditional information about Rubylith...
Rubylith® is a red masking film, which is suited for use with orthochromatic films. Rubylith® is safe for use with camera speed darkroom films as well as indirect gelatin stencil films and diazo, diazo acrylic, or SBQ sensitized stencil films or emulsions.
Rubylith® is primarily used in the camera and plate-making operations for offset lithography, flexography, gravure, and screen processes where orthochromatic films and plates are used.
Rubylith® brand masking film is a light-safe knife cut film coated onto a polyester backing sheet. These films can be cut manually or on a plotter to produce masks for film contacting and plate making and film positives for photographic stencil production.
OPT Product Number: OS-RUBY
- Additional Information
SKU OS-RUBY Manufacturer OPT Warranty 1 Year Warranty
Customer Reviews 1 item(s)
- Rubylith Rocks
This stuff works as advertised.
1= Houston, We Have a Problem & 5= It's Out of This World
- Included Items
- OPT Rubylith Film - 15" X 20"
- Questions & Answers
Product QuestionsIs the rubylith adhesive? If not, what are your recommendations for attaching to iphone screens, etc?Question by: jcharper2002 on Jun 2, 2014 6:27:23 AMRubylith is not adhesive, but it does stick with the small static charge typical of computer monitors. I am not certain if a smartphone screen will hold it this way, so some sort of tape might be advisable. If your phone is in a case, you could cut a piece so that the case holds it in place against the phone screen.Answer by: Chris (Admin) on Jun 2, 2014 8:26:51 AMIs it flat, or is it curled from being in a roll? If not flat, how can one make it become flat? Otherwise it can't be used on a monitor because the view will be blurred if not right against the screen. Thanks.
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