Epoxy resin is useful stuff ... And don’t forget that you can find cyan, magenta and yellow cartridges too if basic black isn’t your thing. Sometimes it’s better to leave your epoxy somewhat ...
Practical, no doubt, but pretty unsporting, especially when it’s possible to cast custom lenses at home using silicone molds and epoxy resins. Possible, but not exactly easy, as [Zachary Tong ...