Building a better refractor The spyglass-turned-telescope had limitations, some of which Galileo was able to design around. To reduce distortions such as elongations and blurriness caused by the ...

9.53 inch Clark Refractor The main telescope is the original 9.53 inch refractor built in 1885 ... Placing the tracking clock within an opening in the pier was a new design by Warner and Swasey. When ...

The original instrument to occupy the 25-foot diameter dome was the 10.5-inch Bausch refracting telescope (f/15.5) installed in the brand new observatory in 1953. Bausch & Lomb Company gave the ...

The Beaverlab Finder TW2 is not a smart telescope, but its design makes it unique. This 82mm/3.2-inch refractor is one of a kind in that a lightweight plastic camera can be attached to it in place ...

Dobsonians are based on the reflector telescope design that sees a large primary mirror collect light then reflect it back into a secondary mirror (here's an explainer of the different telescope ...