Parks Optical’s AZ6 6-inch f/6 Astrolight Newtonian reflector rides on an alt-azimuth mount atop a steel pier. This puts the scope at eye level for most observers.

One of the few Newtonian-based astrographs on the market comes from the Israeli company Boren-Simon. Its PowerNewt 2.8-8 ED is an 8-inch f/2.8 reflector designed for wide-field astrophotography.

Reflector telescopes—which include Dobsonian and Newtonian—use mirrors to reflect the light into focus. These bounce light back and forth in the optical tube, which allows for a shorter design.

With the telescope being a Newtonian design, it means the optical system must be collimated to perform at its very best. This can be a confusing and frustrating process for the beginner as it ...

Simply put, a Dobsonian telescope is a type of large aperture Newtonian telescope design popularised by John Dobson back in the mid 1960s, and from whom it takes its name.

This Celestron 114LCM Newtonian telescope is just what you need, and it's $80 off at Amazon this Black Friday. This Celestron 114LCM Newtonian telescope is on sale now at Amazon for $359.99 .

Kickstarter pledges start at €799 (about US$842), for a package that includes a 6-inch optical module. Assuming the Sevunscope reaches production, it should ship next December. Sources ...

Telescopes are great tools for observing the heavens, or even surrounding landscapes if you have the right vantage point. You don’t have to be a professional to build one though; you can make… ...

Optical Surfaces Ltd. is a leading manufacturer of large, high precision optical flats and coated flat mirrors including a range of non-circular shapes such as elliptical and octagonal. When the ...