From magnification to light-gathering, here’s how to make the decision between buying a telescope or a monocular for ...

(Each resembled a lentil, or lens in Latin ... Standing on shoulders Both types of telescopes—Galileo's refractor and Newton's reflector—underwent improvements in the coming centuries.

Save £26 on a refractor telescope that, with a 90mm aperture, a 900mm focal length and a multi-coated objective lens, offers crystal clear views of the moon and planets. The Evostar 90 EQ2 ...

At its core it’s a Newtonian reflector telescope like many others available ... and 10mm for close-ups – as well as a 2x Barlow lens for doubling the magnification. Unlike most smaller budget ...