Interesting handmade mini telescope optics › Forums › Telescopes › Interesting handmade mini telescope optics This topic has 1 reply, 2 voices, and was last updated 2 years, 7 months ago by Grant Privett. Viewing 2 posts - 1 through 2 (of 2 total) Author Posts 15 January 2022 at 8:20 pm #575136 Michael O’ConnellParticipant 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. 16 January 2022 at 12:41 pm #585119 Grant PrivettParticipant 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. Author Posts Viewing 2 posts - 1 through 2 (of 2 total) You must be logged in to reply to this topic. Log In Username: Password: Keep me signed in Connect with :Login with Sheep CRM Log In