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Airy Disk APO 140mm f/6.5 Triplet FCD-100 Apochromatic Refractor

$4,549.99

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Premium Aperture, Elite Optical Performance

The Airy Disk APO 140mm f/6.5 Triplet FCD-100 is built for serious astrophotographers and dedicated observers seeking a true flagship refractor. With its generous 140mm aperture, this telescope delivers exceptional brightness, high contrast, and remarkable resolution—perfect for capturing faint deep-sky targets and revealing fine structure in lunar and planetary detail.

Its advanced triplet apochromatic design features Hoya FCD-100 ED glass, one of the highest-grade optical materials available. This Japanese-made glass provides outstanding chromatic correction, producing razor-sharp star images and vibrant, accurate color across the entire field. Whether paired with high-resolution cameras or used visually under dark skies, the 140mm APO offers a premium experience that rivals much larger instruments.

The f/6.5 focal ratio strikes a near-perfect balance between speed and optical precision, supporting both wide-field imaging and detailed close-up work. With its robust mechanics, precision focuser, and professional-grade construction, this refractor is ready for both advanced backyard setups and observatory-level imaging rigs.

Perfect for:

  • Deep-sky astrophotography with exceptional detail

  • High-resolution lunar and planetary observing

  • Advanced users upgrading to a large-aperture APO

  • Permanent or semi-permanent imaging setups

Key Features:

  • 140mm aperture for superior brightness and fine resolution

  • Triplet APO design with premium FCD-100 ED glass

  • f/6.5 focal ratio ideal for both imaging and visual work

  • Precision-engineered focuser and stable mechanical build

  • Excellent color correction and contrast

Experience the next tier of optical excellence with a refractor designed for serious stargazers and imaging professionals.

Specifications:

SKU 140APO
Glass used HOYA FCD100, CDGM
Aperture 140mm
Focal ratio f/6.5
Focal length 910mm
Coating full wideband multi coating
Resolving Power 0.83"
Limit mag. 12.5mag
Color White
Tube Material Aluminum alloy
Dovetail style Losmandy
Focuser
4" dual-speed 1:10 rack-and-pinion
Available FF 0.92x FF
Reduce to 837mm f/6
Backfocus adjustable
CAA optional
For sensor Full Frame
Eyepiece Clamp 2" with 1.25" Adapter
Length ext 1000mm
Length hood in 850mm
OTA+PARTS 10.72kg
OTA 8.96kg
OTA DIA 145cm
Dustcover SCREW
Ring weight 0.89kg
Total mounting HW 1.77kg
Alu Suitcase incl
Alu carton size 106x42x48
Weight incl Suitcase 24.41kg
Focuser thread front M134x1
Focuser thread rear M102x1
Rear thread depth 5.5mm
Rear hole depth 8mm
Tube thread M142x1