Fun Fact: Diffractive optics exhibit chromatic aberration in the opposite direction to Refractive optics, so the two can be used together to cancel each other out!
Of course, that doesn’t help with the weight on a space-based telescope, but it was being considered quite frequently for VR Headsets a few years ago.
I’m sure the experiment could be repeated with correct data processing. The authors probably won’t do it, unless they think it will provide a positive result.
That sort of thinking is surely a great loss to scientific progress? You need a few goes by different labs to show failure, so you know that if you were going to try that technique you need to think again, surely?
Sometimes one should probably even do experiments that seem self-evidently futile.
Exactly. It's called uv stabilization. When spec'ing a resin for a product a designer can choose to go with a UV stabilized resin, which is ok in the sun. Basically they add dirt, titanium oxide, other oxides to the plastic to mechanically block the uv waves.
It can do dense translation, translation + rotation, Affine, and Homography alignment; I've used it in the past to do sub-pixel Aruco/AprilTag alignment (and I'd probably also use it for astrophotography).
Of course, that doesn’t help with the weight on a space-based telescope, but it was being considered quite frequently for VR Headsets a few years ago.