I bought it from a local webshop:
https://www.kunststofshop.nl/pvc/pv...ker-rood-e026-1220x530x0-10mm/a-5736-20000048
But I guess you may be able to find a supplier in your country; it's often used in shops and theatres.
I assume the purpose of this was to allow him to watch TV in his darkroom without harm coming to his printing paper?I remember reading decades ago about Eugene Smith using Rubylith in front of his B&W television.
Rubylith is graphic arts masking film, a gel layer of sorts on mylar backing. It is made so the soft gel layer can be cut with an Xacto type knife and parts of the gel layer peeled away for masking. My experience is that is does not age well exposed to heat, the gel drying out and separating from the backing. I also don't think a large, bright light source such a window getting direct sunlight would be very safe with even 2 layers of Rubylith.As a point of curiosity, for practical purposes: how durable is Rubylith for direct sunlight exposure?
My darkroom is a West-facing basement multi-purpose hobby room, with a single window that I've been covering with a blanket for daytime photo use, and uncovering for general use.
The window gets some early-day shading from a big Maple tree during Summer, but otherwise gets direct sunlight all afternoon, year round.
Would rubylith stand up to daily full sun exposure, or would it fade, crack, fail over time?
Can anyone recommend a UV blocking film ? There are many options out there but lots of mix reviews. Some claim to filter 99% of the UV.
I'm building a darkroom for alternative processes and want to be able to work looking a the trees and birds in my backyardwhile keeping good amount of light inside. I have blackout roller shades for silver gelatin traditional enlarger work.
You should be able to get that at any Home Depot and apply it right to the window glass. For your purposes I'd get one that also cuts the light down.
The Rubylith cuts UV too I believe. You should check that though.
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