The first telescopes refracted light, and today reflectors dominate, but there is a third way to make light focus, and it ...

The universe is an endless source of fascination. Observing celestial bodies brings a sense of wonder and discovery. However, ...

Unlike refracting telescopes (whose lenses are very expensive), the Newtonian reflector offers the possibility of owning a large aperture telescope while staying within a modest budget.

Save 14% on this refractor telescope on Amazon. Here, you get fully-coated optics with a 70mm objective lens as well as a lightweight frame and numerous accessories to maximize your stargazing ...

It's different than looking through a telescope. Aesthetically ... and just as many as you would with any high-quality 5-inch refractor. You can see all of the Andromeda Galaxy (M31) within ...

The lens of this telescope is fully coated so that whatever ... Being one of the best companies, the Pie Matrix Phoenix 60700 Refractor Telescope for planet viewing offers crisp and clear images of ...

He also completed fundamental scientific work in the field of optics and invented an improved version of the refracting (lens-based) telescope today called the Keplerian telescope. His telescopic ...