TAKAHASHI FC-100DF REFRACTOR TELESCOPE

TAKAHASHI SKU: TFK10110

$2,750.00

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DESCRIPTION 

The Takahashi FC-100DF apochromatic refractor is designed around a fluorite doublet at F/7.4. It is equipped with a 50.8 mm rack-and-pinion focuser, larger than that of the FC-100DC, allowing the mounting of heavier cameras. Its use remains very versatile and even a small mount will make it possible to exploit its full potential.

If you want to make astrophotography at the native focal length of the refractor, a field corrector is available. It can also be equipped with a focal reducer : either the 76D-RD model normally intended for the small focuser, or the FC-35RD model, specific to the FC-100DF and its 50.8 mm focuser. The use of the latter is recommended for cameras or APNs equipped with APS-C or higher sensors.

CHARACTERISTICS

Takahashi FC-100DF Refractor

CHARACTERISTIC TAKAHASHI FC-100DF REFRACTOR
Objective Fluorite doublet apochromat
Lens cell Air-spaced doublet. Fluorite in the back
Coatings Hard multicoatings
Diameter 100 mm
AT PRIME FOCUS
Focal length 740 mm
Focal ratio F/7.4
Metal Back Distance 223 mm
WITH 76D-FL FIELD CORRECTOR
Focal length 770 mm
Focal ratio F/7.7
Image circle diameter 35 mm
Metal Back Distance 56.2 mm
WITH FC/FS MFL1.04X FIELD CORRECTOR
Focal length 757 mm
Focal ratio F/7.6
Image circle diameter 44 mm
Metal Back Distance 71.2 mm
WITH 76D RD FOCAL REDUCER
Focal length 540 mm
Focal ratio F/5.4
Image circle diameter 30 mm
Backfocus 56.2 mm
WITH FC-35RD FOCAL REDUCER
Focal length 480 mm
Focal ratio F/4.8
Image circle diameter 44 mm
Metal Back Distance 74.1 mm
WITH EX-Q1.6X FOCAL EXTENDER
Focal length 1185 mm
Focal ratio F/11.9
Metal Bck Distance 157 mm
WITH C2X FOCAL EXTENDER
Focal length 1480 mm
Focal ratio F/D 14,8
Metal Back Distance 73 mm

 

Takahashi FC-100DF refractor

CHARACTERISTIC TAKAHASHI FC-100DF REFRACTOR
Length of the optical tube 785 mm (with fixed dew-shield)
Diameter of the optical tube 95 mm
Diameter of the dew-shield 124 mm
Weight 3.6 kg
Focuser Rack-and-pinion

Spot-diagram of Takahashi FC-100D refractor at prime focus

Spot-diagram of Takahashi FC-100D refractor with 76D FL field corrector

Spot-diagram of Takahashi FC-100D refractor with FC/FS MFL1.04X field corrector

Spot-diagram of Takahashi FC-100D refractor with FC-35RD focal reducer

 

Please note: mount, tripod, tube holder and finder sold separately.

 

Included in the box:

Optical Tube Assembly

F50.8 AD Ring TKP19001

50.8 Sleeve TKP00113

Coupling (s) TKP00103

Eyepiece adapter (31.7) TKP00101

Eyepiece adapter (50.8) TKP27110

Extension Tube L (50.8) TKP31112

 

FC-100DF Visual System Chart

FC-100DF Extender Q System Chart

FC-100DF Extender C2X System Chart