Breakthrough

[theropod]

Not knowing if this is the correct sub forum or not I accept admin/mod discretion in replacement to a more appropriate location.

It seems spherical aberration has been solved. Does this mean we can get large single glass refractors?

https://petapixel.com/2019/07/05/goodbye-aberration-physicist-solves-2000-year-old-optical-problem/

[Oldfort]

Maybe.  Will still have to fix chromatic aberration, but looks like an advance, if correct.

[Alien 13]

I have often wondered if there is another way to focus light other than reflection/refraction or if software can make the bottom of a beer glass as sharp as an ED lens...

Alan