Advanced Telescopes

Advanced Telescopes gathers our highest-tier instruments for serious visual observers and astrophotographers who judge a scope by its optics first. The defining trait is premium optical quality with real aperture.

You will find the Explore Scientific ED152, a 152mm f/8 air-spaced triplet apo refractor with HOYA FCD1 ED glass on a carbon-fiber tube. Weigh aperture and focal ratio against your targets and mount when stepping up to this tier.

Choosing a refractor design? Read APO vs Achromatic Refractors.