• Explore Scientific FCD100 102mm carbon fibre air-spaced triplet APO refractor telescope optical tube
  • Explore Scientific FCD100 102mm carbon fibre triplet APO with iEXOS-100 PMC-Eight GoTo mount bundle
  • Explore Scientific FCD100 102mm refractor 2.5-inch HEX dual-speed focuser detail
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Explore Scientific

Explore Scientific FCD100 102mm Carbon Fiber Triplet APO + iEXOS-100 GoTo Mount Bundle — Astrophotography Refractor Kit

Explore Scientific FCD100 102mm Carbon Fiber Triplet APO + iEXOS-100 GoTo Mount Bundle — Astrophotography Refractor Kit

$2,599.99
$2,599.99
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This Explore Scientific FCD100 102mm carbon-fibre APO astrophotography kit pairs a premium triplet apochromatic refractor telescope with the computerized iEXOS-100 GoTo mount — a serious deep-sky imaging package (just add a camera and corrector). The triplet uses high-grade Hoya FCD100 extra-low-dispersion glass for outstanding colour correction, and its lightweight carbon-fibre tube keeps weight down and holds focus better across temperature changes.

With a 102mm aperture and 714mm focal length (f/7), it delivers bright, high-resolution images and views. The iEXOS-100 is a portable WiFi GoTo German equatorial mount that automatically finds and tracks objects — the steady tracking essential for long exposures.

Who it's for: Intermediate and advanced astrophotographers who want premium 4-inch optics in a light, travel-friendly carbon-fibre package. Learn the fundamentals in our beginner's guide to astrophotography.

  • FCD100 triplet optics: premium Hoya FCD100 ED glass for outstanding colour correction.
  • Carbon-fibre tube: lightweight and thermally stable for better focus retention and portability.
  • 102mm f/7 optics: a 4-inch aperture with 714mm focal length for bright, high-resolution results.
  • iEXOS-100 GoTo mount: WiFi equatorial mount that finds and tracks objects automatically.
  • Imaging-ready kit: premium OTA and tracking mount; add a matched flattener/reducer and camera.

What you'll see: The 102mm FCD100 triplet gives sharp, colour-true views of the Moon, Saturn's rings and Jupiter's belts, plus rich star fields with pinpoint stars. For imaging it's a strong deep-sky performer on nebulae, galaxies and clusters, tracked steadily by the GoTo mount through long exposures (pair with a matched flattener or reducer for the flattest field).

Specifications
Optical design FCD100 carbon-fibre triplet apochromatic refractor
Aperture 102mm
Focal length 714mm
Focal ratio f/7
Glass / tube Hoya FCD100 ED; carbon-fibre tube
Mount iEXOS-100 PMC-Eight WiFi GoTo equatorial
Best for Deep-sky astrophotography and high-resolution visual use

Why a carbon-fibre tube?
Carbon fibre is light and thermally stable, so the tube is easier to transport and holds focus better as the temperature drops during a session.

How is FCD100 different from a standard ED triplet?
FCD100 is a premium extra-low-dispersion glass that improves colour correction further, giving cleaner, sharper stars.

Do I need a flattener or reducer for imaging?
For the sharpest corners on larger sensors, add a matched field flattener (or 0.8x reducer); visually the scope performs beautifully as-is.

What does the iEXOS-100 GoTo mount do?
It automatically slews to objects and tracks them as the sky moves, which is essential for long-exposure imaging.

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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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