Guntram Lampert 🇺🇦 on Twitter: "Jupiter, photographed with my homemade 110mm f/26 Kutter telescope. No ADC was used. Thisi instrument serves primarily for observing and sometimes photographing the Sun. https://t.co/XmELklplzW" / Twitter
Views of some Kutter Schiefspieglers
Kutter telescope with toroid primary, building log
Kutter Telescope ( Andre van Zegveld ) - AstroBin
Kutter telescope with toroid primary, building log
Schiefspiegler - Wikipedia
Jim's 10 inch f/8 catadioptric Herschelian Schiefspiegler telescope – Jim Chung's Ramblings