Explore Scientific 152mm f/8 Triplet Apochromat Refractor — Carbon-Fiber APO OTA with 3.3-Inch Focuser for Serious Astrophotography

The Explore Scientific 152mm f/8 Triplet Apochromat Refractor is a flagship six-inch air-spaced triplet apochromatic refractor telescope in a lightweight carbon-fiber tube — a serious instrument for advanced visual observing and astrophotography. Its large 152mm aperture gathers enormous light for bright, high-resolution views, and the air-spaced triplet optics deliver pinpoint stars and true color across the field.

Who it's for

Experienced astrophotographers and observers who want maximum refractor aperture and premium optics (a heavy-duty mount is required; sold separately). New to the hobby? See our beginner's telescope guide.

Key features

• 152mm f/8 air-spaced triplet apo optics for bright, high-resolution views and images
• Carbon-fiber tube — lighter and more thermally stable than metal at this size
• 3.3" HEX rack-and-pinion focuser for rock-steady focus with heavy imaging trains
• Superb color correction and contrast on the Moon, planets, and deep-sky objects
• Built-in retractable dew shield and dovetail

Specifications

Frequently asked questions

What mount does a 152mm refractor need?
A large, heavy-duty equatorial mount (EQ6-class or larger) is essential for steady visual use and astrophotography with a tube this size.

Why carbon fiber at this aperture?
Carbon fiber keeps the large tube lighter and more thermally stable, so it holds focus through temperature changes and is easier to handle and mount.

Is it better for visual or imaging?
Both — the 152mm aperture and long f/8 focal length excel on the Moon, planets, and double stars visually, and with a flattener it's a superb high-resolution imaging scope.