Actually, I'm much more amazed by what lens designs for cameras look like. Sure I can appreciate how they fit these designs in a tiny amount of space, but they

Actually, I'm much more amazed by what lens designs for cameras look like. Sure I can appreciate how they fit these designs in a tiny amount of space, but they are also not constrained in shape by the same constrains as glass lenses. Even more amazing is how they designed very complex lenses in the 50's and 60's essentially by hand. And those designs have stood the test of time and have barely changed. Compared to what modern lens designers have available to them, I just find it mindblowing how the designers then could come up with these things.