TAKAHASHI
Regardless of its photographic qualities, the Epsilon is a first-rate wide-field observation telescope. The observation of star clusters and galaxies will give you intense pleasure due to the fineness of the stars. It proves to be a fabulous instrument for the deep sky and the search for comets.
Κέρδος: 488,80€
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.
EPSILON-180ED REFLECTOR OTA
The catadioptric telescopes of the Epsilon series are wide-field astrographs with an hyperbolic primary mirror. A corrector is integrated in the rack-and-pinion focuser and offers a flat field with stars less than 10μm at the edge of the 44mm image circle.
The Epsilon-130D has a focal ratio of F/2.8. Its very short focal length of 500 mm offers a field of view of 5° and is therefore ideal for imaging large areas of stars and nebulae. Its secondary mirror is mounted on a reinforced spider to avoid any flexion. The rack-and-pinion focuser is equipped with a CAA (Camera Angle Adjuster) for photographic framing.
The primary mirror cell is equipped with 3 double-action adjusting screws (push/pull) with lock nut for pressure adjustment to minimise stress.
The collimation of the Epsilon-180ED is very easy because it does not need to be done on a star. The optical axis is represented by markings on the 2 mirrors. Takahashi has designed a simple collimation eyepiece system particularly adapted to the Epsilon allowing the adjustment of the mirrors in daylight, a big advantage compared to a classical telescope.
Regardless of its photographic qualities, the Epsilon is a first-rate wide-field observation telescope. The observation of star clusters and galaxies will give you intense pleasure due to the fineness of the stars. It proves to be a fabulous instrument for the deep sky and the search for comets. The observation of the Lagoon and Trifide nebulae in the same field is extraordinary and striking.
| Net Weight (g) | 10700 |
|---|---|
| Optical design | Newtonian Reflector |
| Aperture (mm) | 180 |
| Focal length - F (mm) | 500 |
| Focal ratio (f/) | 2.8 |
| Mount | Not included |
| Maximum useful magnification (x) | 360 |
| Characteristics | Takahashi Epsilon-180ED reflector |
| Optical design | Modified hyperbolic Newtonian |
| Combination | Hyperbolic primary mirror + flat secondary mirror + field flattener |
| Length of the optical tube assembly | 570 nm |
| Diameter of the optical tube assembly | 232 nm |
| At prime focus | |
| Focal length | 500 mm |
| Focal ratio | F/2.8 |
| Image circle diameter | 44 mm |
| Metal back distance | 56.2 mm |

Spot-diagram of the Takahashi Epsilon-180ED reflector at prime focus