A high-performance zoom eyepiece of top quality construction, providing an extra flat field of view and crisp, clear distortion-free images. Features a continuous focal length of 7.5mm to 22.5mm and a corresponding wide apparent field of view of 66°-42°. For convenience, focal length positions of 7.5, 12, 17 & 22.5mm are engraved on the eyepiece barrel. The zoom is super-smooth to operate and a pleasure to use. The generous eye relief varies from 18mm-19.5mm.

Constructed with 8 lens elements in 5 separate groups. This exotic eyepiece model features a large eye-lens element and soft twist-up rubber eyecup for comfortable viewing. Fully broadband multi-coated, features blackened lens edges, internal baffling and is parfocal.  Beautifully finished in high-gloss anodized aluminium with knurled rubber grips. Threaded to accept standard 1.25" filters. Weight approx 250g.