Optical Vision HyperFlex-7E 7.2mm-21.5mm High-Performance Zoom Eyepiece

HyperFlex-7E 7.2mm-21.5mm High-Performance Zoom Eyepiece.The Flexibility of a Set of Quality Eyepieces, All-In-One!! A high-performance zoom eyepiece of top quality construction, providing an extra flat field of view and crisp, clear distortion-free images.

Sky-Watcher HyperFlex-8E 7.2mm-21.5mm High-Performance Zoom Eyepiece:

Features a continuous focal length of 7.2mm to 21.5mm and a corresponding wide apparent field of view of 66°-42°.

For convenience, focal length positions of 7.2, 10, 13.5 & 21.5mm are engraved on the eyepiece barrel.

The zoom is super-smooth to operate and a pleasure to use. The generous eye relief varies from 15mm.

Constructed with 7 lens elements in 4 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 190g.