Well, any of us who has ever looked through a telescope could say the same, for the two principal types in use today were developed by giants: the refractor by Galileo and the reflector by Newton.

View Deal Gskyer Telescope 70mm: was $130 now $87 at Amazon Save 33% on the Gskyer 70mm Alt-az refractor telescope at Amazon. This refractor comes complete with all the accessories a beginner ...

McKim Observatory still houses many of its original instruments, including a 9.53 inch Clark Refractor telescope, a meridian transit telescope, and a gravity driven chronograph. Missing from the early ...

Note: Don't forget to use the on-page coupon to get this discount. Save £26 on a refractor telescope that, with a 90mm aperture, a 900mm focal length and a multi-coated objective lens ...

THE Yerkes Observatory, which has recently been completed and inaugurated, contains in its instrumental equipment the largest refractor in the world, the diameter of the object-glass spanning 40 ...

Refractor telescopes use specialised lenses to gather and focus light into an image, displaying a magnified sky view. In contrast, reflector telescopes use curved mirrors to reflect light onto the ...

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 ...

It was soon realized that what was to become known as chromatic aberration was a limiting factor in refracting telescopes, and that this could be overcome by making lenses with longer focal length ...

What if you could find binoculars big enough to qualify as small telescopes? Get ready for the BT–127XL–SD apochromatic ...

Whenever news of a rare celestial event makes the headlines - be it a passing comet, meteor shower or a parade of planets - it makes one wish for two things: a telescope and a pitch-black garden ...

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 ...