Takahashi FC-100DF f/7.4 Doublet Fluorite APO Refractor
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Takahashi FC-100DF f/7.4 Doublet Fluorite APO Refractor

  (1 Review)
✓ 2 year warranty


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About this product

Model:  tak_tfk10110
Part Number:  TFK10110

Takahashi FC-100DF f/7.4 Doublet Fluorite Apochromat Refractor

Essentially a Takahashi FC-D100DC fitted with a larger, stronger, Sky 90 2.7" focuser making it more suitable for deep sky imaging with the optional FC35 Focal Reducer (provides a 44mm circle and an F4.9 focal ratio).

The new Takahashi FC-100DF is fitted with a premium quality F7.4 Fluorite doublet optic that provides superb contrast, sharpness and colour correction. 

Utilises  the Steinheil design with a fluorite rear element and an eco-glass front element. 

A versatile telescope that provides wonderful views at low and high magnifications but can also be used for astrophotography. When combined with the optional FC-76 Reducer the FC-100D operates at F5.4 and delivers a fully corrected 35mm circle that is perfect for APS sized DSLR's. 

The FC-100D is surprisingly light but. like all Takahashi scopes, is very well engineered.

The package version includes Tube Holder, 6x30 Finderscope and Bracket.


Telescope Field of View Simulator


What's in the box

OTA Only Includes:

  • FC-100DF OTA

OTA Package Includes:

  • FC-100DF OTA
  • TKA00551 6x30 Finder
  • TKA00562 Finder bracket
  • TKA21420 Tube holder (95mm)


FC-100DC Type Fluorite Apochromat
Aperture 100mm
Focal length 740mm
Focal ratio F/7.4
Diameter of main tube 95mm
Length of main tube 815mm (with fixed dew shield)
Weight of OTA 3.5kg
Back focus 161mm
With 76D Reducer (TKA18580)
Focal length 540mm
Focal ratio F/5.4
Image circle φ30mm
With 76D Flattener (TKA18582)
Focal length 770mm
Focal ratio F/7.7
Image circle φ35mm
With Extender-Q 1.6X (TKA00595)
Focal length 1,185mm
Focal ratio F/11.9
With Extender C2X (TKA00594)
Focal length 1,480mm
Focal ratio F/14.8
With FC35 Reducer (100DF)
Focal length 488mm
Focal ratio F4.9
Image circle φ44mm

Customer reviews

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Second to none optics.
Thursday, 9 April 2020  | 

The FC 100 series are mechanically very well made telescopes, very light and the focuser is extremely smooth. The optics however, can only be described as exquisite. I mainly use my FC DF with a binoviewer, the views of the moon at various stages, have been incredible and I am looking forward to future planetary viewing with the DF. I cannot recommend this telescope enough, truly superb.


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