The Takahashi FC-100DF apochromatic

$3,210.00

IN STOCK OTA

(Mount Sold Separately)

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.

IN STOCK (NEW)

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.

FC-100DF

 

The FC-100DF is optically identical to the DC model, but features an enhanced 2.7 –inch focuser.  It also features a shorter tube length that provides additional back focus for digital imaging applications.  This added back focus allows use of the FC-35RD reducer, which converts the DF to an f/4.8 instrument.

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

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