Explore Scientific 80mm f/6 APO Triplet Refractor OTA — Color-Correct Views for Visual Astronomy and Astrophotography

The Explore Scientific 80mm f/6 APO Triplet Refractor OTA (Essential Series) is a compact, air-spaced triplet apochromatic refractor telescope that delivers pinpoint stars and true, color-accurate views with very little false color. Its genuine HOYA ED glass keeps images crisp and high-contrast for both visual astronomy and astrophotography — real apo performance at an accessible price.

Who it's for

Keen beginners and up who want genuine apochromatic optics in a portable optical tube (mount and accessories sold separately). New to the hobby? See our beginner's telescope guide.

Key features

• 80mm f/6 air-spaced triplet apo optics with HOYA ED glass — minimal false color
• 2.5" HEX rack-and-pinion focuser holds up to 10 lb of camera gear
• Built-in retractable dew shield and Vixen dovetail
• Sharp for visual and imaging — a versatile grab-and-go apo
• Compact, travel-friendly tube

Specifications

Frequently asked questions

What does apochromatic triplet mean?
It's a premium three-lens design that brings colors to a common focus, so stars look sharp and true instead of fringed with color — a real step up from doublet and achromatic refractors.

How is this different from the FCD100 80mm?
Same 80mm f/6 triplet design, but the FCD100 version uses higher-grade HOYA FCD100 glass for even better correction. This Essential ED delivers excellent results for less.

Is a mount included?
No — this is the optical tube only. You'll need a mount (and, for imaging, a field flattener or reducer and a camera).

Can I use it for astrophotography?
Yes — pair it with a matched field flattener or 0.8× reducer for flat, sharp wide-field images.