7.14) Item 3, Telescope

I can't design a telescope.

That doesn't mean I haven't tried.

Somehow, I just can't work it out. Turning the image the right way up is what stymied my design effort. I've had to resort to buying a toy telescope. I shall be measuring the lens positions, and making a new and firmer housing.
It feels like a real failure on my part, not being able to design something as simple as a telescope. I think I need to creep into a corner and sob my misery into my cuff.. No, on second thoughts, that'd be feeble.

The centreline of the telescope is to be 25mm from the surface of the frame, pointing at the horizon mirror. Make sure that the index arm doesn't foul with the telescope support. I think a 3x magnification, 30mm objective lens is a good size to go for.