This apochromatic telescope features a three-lens objective with a central lens made of ED (extra-low dispersion) glass. This ensures excellent suppression of chromatic aberration, which is inherent in refracting telescopes. The result is a bright and high-contrast image.
A fourth lens is positioned downstream of the objective lens, which flattens the curved image field. This is why this apochromatic telescope is also marketed as a quadruplet or Astrograph. This lens in the optical path ensures consistent sharpness right to the edge of the image field. There is therefore no need to purchase a separate image field flattener. Furthermore, this design makes back focus uncritical: if the image is in focus on the camera sensor, the required distance to the camera sensor is also correct.
The extension tube with integrated filter thread included in the scope is designed for astrophotography. It features the standard thread sizes found on most cameras, so securely attaching a camera is no problem. For visual observation, this tube is simply removed. This leaves sufficient space to the objective focus to attach an optional diagonal mirror and an eyepiece – and this is done very easily via the 2-inch barrel mount.
A reduction gear is provided to allow for precise focus adjustment. The integrated rotator enables optimal alignment of the camera sensor with the telescope image or field of view. Both features are essential for astrophotography and are included with this Apo.
The practical handle and the standard viewfinder shoes on the focuser allow for the attachment of additional accessories.
Speaking of standards: mounting on an astronomical mount is very simple via a prism rail in accordance with the Vixen standard.
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.
