Video: types of telescopes

6 April 2019

Bill has made a new video, and it's now on our YouTube channel.

It's an animation showing the four main types of telescopes we deal with here, a bit of their history, ray diagrams of how they work, and what their best uses are.

Bill's been working here for a little while, and his workmates are starting to get the impression he's a little ... unusual. Watch the video and see if you agree.