Two views of German amateur Percy Zahl's Schiefspiegler (closed construction).
Amateur Georg Dittie's instruments, a 150 mm Schiefspiegler (open construction) compared to a 150 mm refractor.
The finely crafted Schiefspiegler of Michael Brunn of Hoxter, Germany. The aperture of this scope is 125 mm and works at f/28.
Michael is also designer and patent holder for Tetra-Schiefspiegler constructions.
Thanks to David Stevick for providing the images and information.
The 200/4000 mm Schiefspiegler of Stefan Schimpf. Note: The guiding refractor is a 5-inch, the Schief an 8-inch scope!
Giovanni Ariot's Schiefspiegler. This telescope has a diameter of 20cm and a focal lenght of 4 meter, thus a focal ratio of f/20. The instrument was originally built in 1963 by Mr. C. Recla of Verona, then bought by the uncle of the current owner and used for some years, then discarded and put in a loft. It was then inherited by Giovanni, who spent much effort to restore and rebuild most mechanical parts to bring it into its present shape.