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TAKAHASHI
The Takahashi FC-100DF apochromatic refractor is designed around a fluorite doublet at F/7.4. Its use remains very versatile and even a small mount will make it possible to exploit its full potential.
Available Upon Request
This category includes products which are not kept in stock and for some reasons -which don’t depend on our company- can’t be available in less than 14 days. Specifically, this category includes new products thar are pre-advertised by manufacturers, however they are not available in Greece yet. You can pre-order these items with a special preferential price. If the estimated arrival date of this product is already known, then the estimated date will be written above the indication “AVAILABLE UPON REQUEST”.
FC-100DF (OTA) WITH 50.8/31.75 ADAPTER
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.
| Net Weight (g) | 3600 |
|---|---|
| Optical design | Apochromatic Refractor |
| Aperture (mm) | 100 |
| Focal length - F (mm) | 740 |
| Focal ratio (f/) | 7.4 |
| Mount | Not included |
| Maximum useful magnification (x) | 200 |
| Characteristic | Takahashi FC-100DF refractor |
| Objective | Fluorite doublet apochromat |
| Lens cell | Air-spaced doublet. Fluorite in the back |
| Coatings | Hard multicoatings |
| 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 |
| Focuser | Rack-and-pinion |
| 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 |
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
All orders we receive until 15:00 concerning products in our warehouse, processed on the same day
Well-trained scientific and technical personnel are available to you at any time, to solve the questions and concerns about your equipment.
If you are not satisfied with the product you received, you can return it within 14 days of receipt.
Experience you can trust. Planetarium of Thessaloniki is the largest supplier of astronomy goods in the Balkans
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