Grant, if you can convince Ian to help us... I have 2 x 50mm used binoculaur objectives sitting at home. They are in a threaded / standard binocular housing (kind of of like a refractor primary cell with a small lens hood)... I was not sure how to make the focuser end so I held off on the project
Ian, nice work there. Where did you get the machining / CNC done? I know there are people in the club that do it... but the waiting list is about 2 years...