TAKAHASHI FCT-114D TRIPLET OTA
The Takahashi FCT-114D is a Fluorite apochromatic triplet refractor which excels visual and photographic use. With a Strehl ratio of 97.5% and virtually zero chromatic aberration, the FCT-114D offers crisp, high-contrast views at high magnifications.
The optional FCT-L 0.99x field flattener and 0.8x focal reducer transform the FCT-114D into a versatile astrograph with ≤ 6μm RMS spot diameters at the edge of a full-frame image circle, making it an excellent choice for modern sensors.
The FCT-114D is available in two different configurations:
- FCT-114DS using the same focuser as the TOA-130NS, optimized for visual observation.
- FCT-114DF using the 1:8 fine-focuser as found on the FSQ-85EDX to support heavy camera setups.
Note: Does not include tube rings or a dovetail bar. Optional 114WB Tube Holder is available to order. Additionally, you can use the PrimaLuceLab 115mm PLUS tube rings in combination with the PrimaLuceLab 240mm Losmandy bar.
Spot diagram of Takahashi FCT-114DF with optional FCT-L field flattener.
Spot diagram of Takahashi FCT-114DF with optional FCT-L 0.8x reducer.
Spot diagram of Takahashi FCT-114DS with optional FCT-L field flattener.
Spot diagram of Takahashi FCT-114DS with optional FCT-L 0.8x reducer.
Specifications
| Optical design | Fluorite triplet apochromat |
|---|---|
| Lens cell |
Air-spaced triplet, 1 x fluorite lens |
| Coatings |
Hard multicoatings |
| Objective diameter |
114 mm |
| Focal length at prime focus |
800 mm |
| Focal ratio at prime focus |
F/7 |
| Threads | TBD |
| Dew shield diameter | 145 mm |
| Tube diameter | 114 mm |
| Tube length | DS: 824 - 913 mm; DF: 826 - 915 mm |
| Tube weight | DS: 5.3 kg; DF: 5.5 kg |
Items included
- FCT-114DS/DF OTA
- User manual
- TKP19001 - M64 x 0.75 male to M72 x 1 female adapter
- TKP27110 - M72 x 1 male to 2" barrel adapter
- TKP31112 - 2" extension tube 73mm
- TKP00113 - 2" to M43 x 0.75 female adapter
- TKP00103 - M43 x 0.75 male to M36.4 x 1 female adapter
- TKP00101 - M36.4 x 1 female to 1.25" adapter
Downloads
 FCT-114D instruction manual (Japanese)
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