Flatfield optics: Finally, a zoom eyepiece with distortion-free imaging right to the edge!
Manufacturing a good zoom eyepiece is significantly more difficult than manufacturing an eyepiece with a fixed focal length. A zoom eyepiece consists of several lenses that must be perfectly aligned with each other during the zooming process. Many "simple" zoom eyepieces have the problem that they do not have sufficient transmission and produce poor images at the edges. This problem has been perfectly solved with the Flatfield zoom eyepiece. Thanks to the special Flatfield optics, you have a distortion-free and high-contrast image even at the edge of the field throughout the entire zoom range.
The high-quality broadband multi-coating of all lenses ensures correspondingly high transmission in the eyepiece. Blackened lens edges and a specially designed baffle system provide anti-reflection protection for high contrast performance. The eyepiece cups can be individually adjusted by unscrewing them, allowing them to be adapted to each viewer.
The eyepiece is also suitable for telescopes with fast optics. Zoom eyepieces are ideal for travelling, for example. They combine all the important focal lengths in one eyepiece, so you don't have to carry several fixed focal lengths with you. Zoom eyepieces are also perfect for landscape observation. As with a spotting scope, you can zoom in on objects without having to constantly change eyepieces.
