Interesting handmade mini telescope optics

[Michael O’Connell]

Thought some of you might like this video:
https://www.youtube.com/watch?v=HxwhCmO90UQ&ab_channel=HuygensOptics
and link to more info:
https://www.cloudynights.com/topic/406276-a-solid-30-mm-f10-schmidt-cassegrain/ Michael.

[Grant Privett]

Apparently, the American Optical Corp, made several analogous systems in the 60s for reconnaissance systems. Though theirs was 3″ aperture, 7″ long and ran at f/35.

A friend, keen on cameras, pointed me at this… https://www.photo.net/discuss/threads/vivitar-series-1-600mm-f8-solid-catadioptric-telephoto-lens.5501861/ and said the bokeh put people off them.

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