Originally Posted by
Max Grew
Hello, our dark slides are made from 0.9mm black FR4, its not exactly a cheap material but if you buy it by the pallet then its not too bad... we tested a lot of different materials for dark slides and found FR4 (very similar to G10 but a bit cheaper as it is more common) is basically the perfect material for them. it would also appear that it is what many other manufactures also used/use. our 8x10 dark slides are 209mm wide x 298mm long, with a 80x10mm off centre tab at the top.
We aren't currently able to do custom work due to demand but it is something we could look at in the future, the thought of many film holders not being used due to damaged dark slides is not great and we would be keen to get them back up and running. If it is any help, other materials that worked well were 0.9mm aluminium, this is light proof as is but you may wish to have it anodised black, or if you can find it 0.9mm high carbon ABS, not common but works well.
here is a little video of us making dark slides if anyone is interested in the process,
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