Usability
The excellent mechanical construction and finish when combined with a substantial eye relief of 18mm-19.5mm and an adjustable twist-type eyeguard make these eyepieces very comfortable to use. In addition, the eyepiece is parfocal and as such there is no need to refocus when changing magnifications.
Optical performance
The eyepiece's advanced optical train consists of eight lenses in five separate groups, all optical surfaces are broadband fully multi-coated and all lenses feature blackened edges, the eyepiece also benefits from internal baffling. These features reduce internal reflections to an absolute minimum and help to significantly increase contrast.
Compact
The Eyepiece has a 1.25" nosepiece and is threaded for filters. It weighs 255 grams, measures 94mm tall (including the nosepiece) and has a 56mm maximum diameter.
Carries full one year UK warranty.
Opticstar Zoom XL eyepieces.
