Epsilon E-160ED Reflector

The E-160ED reflecting telescope has an aperture of 160 mm and a focal length of 530 mm and provides a well corrected flat field for full frame imaging sensors. Takahashi's proprietary optical design features a hyperbolic, concave primary mirror with a 2 element corrector lens to eliminate spherical aberration and coma. Compared to the conventional Schmidt camera design, the chromatic aberration is reduced by half, even out to large viewing angles. By using ED glass in the corrector, a spot image within 3 μm has been achieved at the periphery of a full frame imaging sensor.