• FCD100-10207-02
  • FCD100-10207-02
  • FCD100-10207-02
  • FCD100-10207-02
  • FCD100-10207-02
  • FCD100-10207-02
  • FCD100-10207-02
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Explore Scientific

Explore Scientific 102mm f/7 FCD100 Triplet APO Refractor — Premium Fluorite Apochromat for Visual and Astrophotography Use

Explore Scientific 102mm f/7 FCD100 Triplet APO Refractor — Premium Fluorite Apochromat for Visual and Astrophotography Use

$1,699.99
$1,699.99
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The Explore Scientific 102mm FCD100 is a premium-grade fluorite apochromat for observers and astrophotographers who want the best color correction available in a 102mm instrument. The HOYA FCD100 ED glass delivers a step above standard ED apochromats — tighter color correction, higher contrast, and the kind of star field sharpness that makes fine planetary images possible.

The 2.5" HEX focuser is built for imaging — it handles heavy camera setups without flexing, making this the right choice if your goal is wide-field astrophotography or high-resolution planetary imaging with a larger sensor.

What you'll see (and image):

  • Planets in true color — pin-sharp Saturn rings, Jupiter cloud structure, crisp color boundaries
  • Deep-sky targets with tight, well-corrected stars across a wide image circle
  • Double stars with accurate color rendering — A-type stars look white, K-type look orange
  • Emission nebulae, star clusters, and galaxies at their best optical performance in this aperture class

What's in the box:

  • 102mm f/7 FCD100 triplet APO OTA — air-spaced triplet with HOYA FCD100 ED glass, fully multi-coated
  • 2.5" HEX rack-and-pinion focuser (dual-speed capable) — supports heavier imaging accessories without flex
  • Retractable dew shield — keeps dew off the objective and collapses for compact storage
  • Dual tube rings with Vixen-style dovetail — balances across a wide range of mounts

Note: No diagonal or eyepiece included. This is a premium imaging and visual OTA — you'll need your own 2" diagonal, eyepieces, and mount. For imaging, pair with a quality equatorial or GoTo platform for best results.

Specs:

Aperture 102mm — resolves ~1.14 arcseconds; capable for high-resolution planetary imaging
Focal Length 714mm
Focal Ratio f/7 — versatile for planetary and wide-field deep-sky imaging
Optical Design Air-spaced triplet APO, HOYA FCD100 ED glass — premium fluorite-grade correction
Focuser 2.5" HEX rack-and-pinion, dual-speed capable — handles heavy imaging loads without flexing
Resolution ~1.14 arcseconds
Limiting Magnitude ~12.5
OTA Weight ~4.9–5.4 kg
Mount Interface Vixen-style dovetail with dual cradle rings

The best optical performance in a 102mm refractor — for observers who won't accept color fringing and imagers who need a focuser that doesn't flex.

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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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