TAKAHASHI
The Takahashi FC-76DCU apochromatic refractor is equipped with a fluorite doublet at F/7.5. Its very low weight, only 1.9 kg for the tube alone, makes it a very portable instrument, usable on a simple photo tripod.
Κέρδος: 170,20€
Available Upon Request
This includes products that we do not keep in stock but are only available upon request or have been announced in advance by the manufacturer. These items are usually shipped within 5-14 days. Once we receive your order, we will notify you by e-mail or telephone of the exact delivery time, as well as the amount of any deposit that will be required.
FC-76DCU TUBE ASSEMBLY COMPLETE D-76mm F-570mm F/7.5 (FLUORITE DOUBLET)
The Takahashi FC-76DCU apochromatic refractor is equipped with a fluorite doublet at F/7.5. Its very low weight, only 1.9 kg for the tube alone, makes it a very portable instrument, usable on a simple photo tripod. It comes with a fixed dew shield and a 31.75 mm compact rack-and-pinion focuser inherited from the FS-60CB. A brake locks the focus and it is possible to add an optional Camera Angle Adjuster (CAA) to make it easier to frame the picture.
The FC-76DCU can be equipped with a focal reducer (76D-RD) or with a field corrector (76D-FL or multi-flattener FC/FS MFL1.04X) for deep sky imaging.
The 80 mm diameter tube is in 2 parts. It can receive the Extender 1.7XR from the FS-60Q, which increases the F/D ratio from 7.5 to 12.75. The focal length gain then allows optimal chromatic correction for unforgettable planetary observations.
For FS-60CB owners, there is a conversion kit available to convert this refractor to FC-76DCU.
| Net Weight (g) | 1900 |
|---|---|
| Optical design | Apochromatic Refractor |
| Aperture (mm) | 76 |
| Focal length - F (mm) | 570 |
| Focal ratio (f/) | 7.5 |
| Mount | Not included |
| Finderscope | 6x30 |
| Maximum useful magnification (x) | 152 |
In the box:
| Characteristic | Takahashi FC-76DCU refractor |
| Objective | Fluorite doublet apochromat |
| Lens cell | Air-spaced doublet. Fluorite in the back. |
| Coatings | Hard multicoatings |
| Length of the optical tube | 656 mm (with dew-shield) |
| Diameter of the optical tube | 80 mm |
| Diamètre of the dew-shield | 80 mm |
| Focuser | Rack-and-pinion |
| At prime focus | |
| Focal ratio | 570 mm |
| Focal ratio | F/7.5 |
| Metal Back Distance | 159 mm |
| With FC/FS MFL1.04X field corrector | |
| Focal length | 589 mm |
| Focal ratio | F/7.8 |
| Image circle diameter | 44 mm |
| Metal Back Distance | 85.2 mm |
| With 76D RD focal reducer | |
| Focal length | 417 mm |
| Focal ratio | F/5.5 |
| Image circle diameter | 36 mm |
| Metal Back Distance | 56.2 mm |
| With EX-Q1.6X focal extender | |
| Focal length | 916 mm |
| Focal ratio | F/12 |
| Metal Back Distance | 157 mm |
| With 1.7XR focal extender | |
| Focal length | 969 mm |
| Focal ratio | F/12.8 |

Spot-diagram of the Takahashi FC-76DS refractor at prime focus

Spot-diagram of the Takahashi FC-76DS refractor with FC/FS MFL1.04X field corrector

Spot-diagram of the Takahashi FC-76DS refractor with 76D-RD focal reducer