The Nikon SEP-20-60 Eyepiece for PROSTAFF 5 Fieldscope offers exceptional detailed observation with its fully multilayer-coated lenses and adjustable 20-60x magnification. Compatible with all PROSTAFF 5 Fieldscopes, this eyepiece is ideal for those who wear eyeglasses, with its long eye relief design. Its bayonet mount with lock ensures easy attachment and release, and it is also water-resistant when attached to the Fieldscope body.