DARK STAR astronomia, test strumentali, telescopi, montature astronomiche, fotografia planetaria, deep sky - SCHIEFSPIEGLER
Two-mirror tilted component telescopes
The Tri-Schiefspiegler Telescope
Interesting Tetra-Schiefspiegler Design - ATM, Optics and DIY Forum - Cloudy Nights
Oleguer Nogues on Twitter: "cooling down my #schiefspiegler telescope, see if I can get some lunar crisp images this evening at firect focus with DSLR camera https://t.co/a08kyBhov3" / Twitter
Lunar Eclipse Gallery - Mondfinsternis Galerie
Why no commercial Schiefspiegler telescope - Reflectors - Cloudy Nights