TAKAHASHI
The Takahashi FC-100DC apochromatic telescope is designed around a fluorite doublet at F/D 7.4. Designed primarily for observation, it still allows the use of small cameras in astrophotography.
Available within 5-14 days
This includes products that we do not keep in stock but are only available on request or have been announced by the manufacturer. For orders of these items, a deposit is required, proportional to the total value of your order. As soon as we receive your order, we will notify you by e-mail or telephone, for the exact delivery time and the amount of the deposit.
FC-100DC TUBE ASSEMBLY COMPLETE D-100mm F-740mm F/7.4
The Takahashi FC-100DC apochromatic telescope is designed around a fluorite doublet at F/D 7.4. It is equipped with a 31.75 mm compact rack-and-pinion focuser, inherited from the FS-60CB. It is much lighter than its big sister FC-100DF, only 2.8 kg compared to 3.6 kg for the FC-100DF. A small mount will be enough to make the most of it. Designed primarily for observation, it still allows the use of small cameras in astrophotography.
Photography at the native focal length of the refractor requires the 76D field corrector (or the multi-flattener). The FC-100DC can also be equipped with the 76D-RD focal reducer.
The user of large sensors, in APS-C or higher format, will prefer the FC-100DF model and its dedicated focal reducer, the FC-35RD.
Net Weight (g) | 2800 |
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Optical design | Apochromatic Refractor |
Aperture (mm) | 100 |
Focal length - F (mm) | 740 |
Focal ratio (f/) | 7.4 |
Mount | Not included |
Finderscope | 6x30 |
Maximum useful magnification (x) | 200 |
In the box:
Caharacteristic | Takahashi FC-100DC refractor |
Objective | Fluorite doublet apochromat |
Lens cell | Air-spaced doublet. Fluorite in the back |
Coatings | Hard multicoatings |
Length of the optical tube | 815 mm (with fixed dew-shield) |
Diameter of the optical tube | 95 mm |
Diameter of the dew shield | 124 mm |
Focuser | Rack-and-pinion |
At prime focus | |
Focal length | 740 mm |
Focal ratio | F/7.4 |
Metal Back Distance | 161 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 |
Metal Back Distance | 56.2 mm |
With EX-Q1.6X focal extender | |
Focal length | 1185 mm |
Focal ratio | F/11.9 |
Metal Back Distance | 157 mm |
With C2X focal extender | |
Focal length | 1480 mm |
Focal ratio | F/D 14,8 |
Metal Back Distance | 73 mm |
Spot-diagram with Takahashi FC-100D at prime focus
Spot-diagram with Takahashi FC-100D with 76D FL field corrector
Spot-diagram with Takahashi FC-100D with FC/FS MFL1.04X field corrector