[rainbowmverse]

It was commonly accepted wisdom that camera lenses could only get so small and light at a certain quality due to the physical limits of glass.

And then... https://news.harvard.edu/gazette/story/2016/06/a-thinner-fla...

It's a very long way from putting a 1500mm lens in a pocket camera, but it looks promising. Of course, it could end up being the fusion reactor of optics: always a half decade out.

[dwaltrip]

I've recently gotten into amateur astronomy. The modern high-end telescope eyepieces, usually low-power with a really wide FOV, often now have 7 or more lenses and can weigh 2 pounds.

This research looks amazing. It could change the game once again, enabling even higher quality and wider FOVs in a broad range of focal lengths (from what I've read, there has been a lot of improvement in the past few decades already). Probably won't be cheap though.