• Explore Scientific 127mm f/7.5 FCD100 Carbon-Fiber APO Triplet Refractor OTA — Premium Optics for Visual and Imaging
  • Explore Scientific 127mm f/7.5 FCD100 Carbon-Fiber APO Triplet Refractor OTA — view 2
  • Explore Scientific 127mm f/7.5 FCD100 Carbon-Fiber APO Triplet Refractor OTA — view 3
  • Explore Scientific 127mm f/7.5 FCD100 Carbon-Fiber APO Triplet Refractor OTA — view 4
  • Explore Scientific 127mm f/7.5 FCD100 Carbon-Fiber APO Triplet Refractor OTA — view 5
  • Explore Scientific 127mm f/7.5 FCD100 Carbon-Fiber APO Triplet Refractor OTA — view 6
  • Explore Scientific 127mm f/7.5 FCD100 Carbon-Fiber APO Triplet Refractor OTA — view 7
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Explore Scientific

Explore Scientific 102mm f/7 FCD100 Carbon-Fiber APO Triplet Refractor OTA — Premium ED Optics for Critical Visual and Imaging Work

Explore Scientific 102mm f/7 FCD100 Carbon-Fiber APO Triplet Refractor OTA — Premium ED Optics for Critical Visual and Imaging Work

$1,899.99
$1,899.99
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The Explore Scientific 102mm f/7 FCD100 carbon-fiber APO triplet refractor telescope is a premium optical tube for critical visual observing and astrophotography. An apochromatic (APO) triplet uses three lens elements — including Hoya FCD100 extra-low-dispersion glass — to bring all colors of light to a single focus, producing razor-sharp, high-contrast images with virtually no false color. The carbon-fiber tube keeps weight low and rigidity high for demanding imaging work.

With a 102mm aperture and 714mm focal length (f/7), this refractor pairs excellent color correction with a fast, wide-field focal ratio, feeding light to a robust 2.5-inch HEX focuser that handles heavy cameras with ease.

Who it's for

Built for serious visual observers and astrophotographers who want a portable, premium APO refractor with lightweight carbon-fiber construction. New to the hobby? See our guide on how to pick your first telescope.

Key features

  • 102mm FCD100 air-spaced triplet APO with Hoya ED glass for false-color-free sharpness.
  • Fast 714mm f/7 optics for wide-field views and shorter exposures.
  • Carbon-fiber tube that's light yet rigid (about 9.5 lb) for portability.
  • 2.5-inch HEX focuser for precise, load-bearing focus with cameras.
  • Premium optical and mechanical quality for visual and imaging use.

What you'll see

The 102mm APO delivers sharp, high-contrast views — crisp lunar detail, Saturn's rings, Jupiter's belts and moons, tight double stars, and bright deep-sky objects with pinpoint stars and true color. Its fast f/7 focal ratio and flat, color-corrected field make it an excellent wide-field astrophotography refractor on a tracking mount.

Specifications
Brand Explore Scientific
Model FCD100-10207-CF-01
Optical design FCD100 air-spaced apochromatic triplet
Aperture 102 mm
Focal length / ratio 714 mm, f/7
Tube Carbon fiber (~9.5 lb)
Focuser 2.5-inch HEX

Frequently asked questions

What makes an FCD100 APO special?
Its three-element design with Hoya FCD100 ED glass eliminates false color, delivering sharp, high-contrast, color-accurate images prized for visual use and astrophotography.

Is this an optical tube only?
Yes, it's an OTA. You'll need a suitable mount (and, for imaging, a field flattener and camera).

Why carbon fiber?
The carbon-fiber tube is lighter and more thermally stable than metal, aiding portability and holding focus as temperatures change.

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Frequently Asked Questions

With a beginner telescope you can see a surprising amount — the craters and mountains on the Moon, the rings of Saturn, the moons of Jupiter, and star clusters like the Pleiades. As you get more comfortable, you can also spot nebulae and distant galaxies. Not sure which beginner telescope is right for you? Check out our Telescope Buying Guide.
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All telescopes on Telescope Wolves are hand-picked with beginners in mind. If you're unsure which telescope is right for you, check out our Telescope Buying Guide.
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