Stellafane: McGregor-Schupmann History
The Merz Company: A Global Player of 19th Century | SpringerLink
catadioptric_telescopes
Building my Schupmann Medial Telescope - wa2guf's JimdoPage!
mars 1 23 08 | Mars image taken on January 23, 2008 using DF… | Flickr
Observatory | Institute of Interfacial Process Engineering and Plasma Technology | University of Stuttgart
Catadioptric system - Wikiwand
Adaptation of the Schupmann Medial Telescope to a Large Scale Astronomical Optical System
Adaptation of the Schupmann Medial Telescope to a Large Scale Astronomical Optical System
The Jones-Medial Refractor | Optical Ed's
1899 Musson | RASC
The Schupmann Telescope, The Story, Design, Construction and Use of a Neglected Telescope Type
Adaptation of the Schupmann Medial Telescope to a Large Scale Astronomical Optical System
Rathenower refractor
Schupmann medial telescope
Building my Schupmann Medial Telescope - wa2guf's JimdoPage!
Mangin mirror - Wikipedia
Schupmann medial telescope
Schupmann medial telescope
The Jones-Medial Refractor | Optical Ed's
![Amateur construction of Schupmann medial telescopes (Book, 1984) [WorldCat.org]](https://coverart.oclc.org/ImageWebSvc/oclc/+-+249881903_140.jpg?SearchOrder=+-+OT,OS,TN,GO,FA "Amateur construction of Schupmann medial telescopes (Book, 1984) [WorldCat.org]")
Amateur construction of Schupmann medial telescopes (Book, 1984) [WorldCat.org]
Have you ever heard of the Schupman telescope? - ATM, Optics and DIY Forum - Cloudy Nights
Meniscus corrector - Wikipedia
Have you ever heard of the Schupman telescope? - Page 2 - ATM, Optics and DIY Forum - Cloudy Nights
Stellafane: McGregor-Schupmann History
The Schupmann Telescope, The Story, Design, Construction and Use of a Neglected Telescope Type
