Catadioptric telescopes are in fact sometimes configured and sold as long (working) distance microscopes: http://www.company7.com/questar/microscope.html http:/

Catadioptric telescopes are in fact sometimes configured and sold as long (working) distance microscopes: http://www.company7.com/questar/microscope.html http://www.company7.com/questar/microscope.html Not made out of a single piece of glass, though, which is one of the things that's so elegant about Rik ter Horst's design.