Explore Scientific ED80 Essential Series Air-Spaced Triplet Refractor Telescope with Field Flattener

A compact, travel-ready apochromatic refractor for sharp astrophotography and crisp visual views.

The ED80 Essential Series is an 80mm f/6 apochromatic (apo) triplet refractor — a telescope prized for delivering pinpoint stars with very little false color. Its air-spaced triplet lens uses genuine HOYA ED glass to keep views crisp and high-contrast, and the heavy-duty 2.5-inch focuser holds a camera and accessories steady. Add the included field flattener and 0.8x reducer and it becomes a fast, wide-field imaging system for capturing large targets like the Andromeda Galaxy.

Why you will like it

• Sharp, color-accurate optics — air-spaced triplet with HOYA ED glass minimizes the purple fringing cheaper scopes show
• Astrophotography-ready — included flattener delivers a flat, wide field for edge-to-edge sharp stars
• Rock-solid focuser — 2.5 inch hex focuser supports up to 10 lbs of imaging gear
• Grab-and-go — compact tube with built-in dew shield and Vixen dovetail for easy mounting

What is in the box: ED80 f/6 triplet telescope, field flattener, 99% reflective 2-inch diagonal, 2.5-inch hex focuser, hybrid finder base, 2 extension tubes, built-in dew shield, dust cap.

Common questions

What does apochromatic triplet mean?
It is a premium 3-lens design that brings colors to the same focus, so stars look sharp and true instead of fringed with color.

Is a mount included?
No — this is the telescope tube and imaging accessories. A mount is sold separately (see the GoTo bundle version).

Can beginners use it?
Yes, though it is aimed at keen beginners and up who want astrophotography-grade optics.

Specifications