Dedicated eyepiece with variable magnification for use with specific EDG series Fieldscopes. Delivers bright, clear images at 20-60x magnification when attached to an EDG Fieldscope model with an 85 mm objective lens, and at 16-48x magnification when attached to a model with a 65 mm objective lens. Features a bayonet-type mount with lock for quick and secure attachment to the Fieldscope. With a long eye-relief this zoom eyepiece is a great choice for viewing subjects from variable distances, even if you wear glasses.

Magnification: 50x when attached to the EDG Fieldscope 85 and 40x when attached to the EDG Fieldscope 65.
Bayonet mount with lock for quick and secure attachment.
Multilayer coated lenses reduce internal reflections and flare to deliver superior light transmission for sharp, clear views.
Aspherical lens elements for bright, clear images with well-balanced color and minimal distortion.
Waterproof (up to 2 m for 10 minutes) and fog-proof, with O-ring seals and nitrogen gas.
Long eye relief: 18.5-2.0mm when attached to the EDG Fieldscope 85 and 16.8-2mm when attached to the EDG Fieldscope 65.
Compatible with specific Fieldscope FEP Eyepiece Mount Adapters.
Designed for Digiscoping with certain Nikon COOLPIX cameras.