The catadioptric telescopes of the Epsilon series are wide-angle Astrographs with hyperbolic mirrors. A corrector is integrated into the focuser, which enables a flat field with stars of less than 10 μm at the edge of the corrected image circle.
The secondary mirror is mounted on a reinforced spider to prevent any distortion. The rack is equipped with a rotatable clamp (rotator) for photographic alignment.
Collimation of the Epsilon is particularly easy, as it does not have to be done on a star. The central optical axis is indicated by markings on the two mirrors. Takahashi has developed a simple collimation eyepiece system that is specifically designed for the Epsilon and allows the mirrors to be adjusted in daylight, which is a major advantage over a conventional telescope.
Regardless of its photographic qualities, the Epsilon is a first-class wide-field observation telescope with optional eyepieces. The observation of star clusters and galaxies will greatly pleasure you due to the fineness of the stars. It proves to be a fabulous instrument for deep sky and comet hunting. The observation of the Lagoon and Trifid nebulae in the same field is extraordinary and impressive.
The ED in the Epsilon 160ED: The old corrector in the Espilon 160 was designed for analogue photography and was no longer suitable for today's CCD/CMOS cameras, whose Pixels are becoming smaller and smaller. The new corrector achieves a point-like image limited only by diffraction of 3 micrometres RMS at the edge of the image through optimal correction of aberrations using ED glass ! A real masterpiece! This corrector was developed exclusively for the Epsilon 160ED and cannot be adapted to other models.
Optimising the telescope design has also reduced distortion by two-thirds. This distortion was clearly noticeable in the original model, but is now imperceptible at only 0.3%, which is almost comparable to that of a TOA with a field corrector (0.2%). The reduction in distortion increases the accuracy of numerous applications: astrometric reduction, positional astronomy or the assembly of image mosaics.
Made in Japan!
It not only matters which telescope you buy but also where you buy it. Our additional services:
- We are a leading telescope dealer and know the devices we sell. Our customer service team will gladly help you after your purchase if you have problems with assembly or operation.
- We provide a copy of the 80-page Telescope ABC beginners handbook with every telescope.
