Saw an auction on eBay for 5x7 film holders. Darkslides are red on one side and black on the other. Wonder if they are IR safe?
Is this something newer or has it been around and I have just missed them?
A link so you can see what they are. I have no relation to the sale - just thought it interesting.
https://www.ebay.com/itm/26541120288...3ABFBM6L-ekoNg
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