In his paper originally submitted to the Maksutov Circulars, Tore Sjogren examined the state of unobstructed reflectors of the time. Concerning Anton Kutter's schiefspiegler, Tore wrote "...in order to correct the inevitable remaining astigmatism, he put in a cylindrical lens - the same kind that some of us use in our spectacles."

Later he noted, "When I read Leonard's proposal, I heartily agreed - with the exception of the harness. I do not believe in a harness,..."

"During a sleepless night, the idea flashed through my head, Why not take the best from both of these, from the schiefspiegler and the Yolo, and make them into a new combination?"

Curator: Hartmut Frommert [contact]
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