TeleVue Radian 18 mm eyepieces ERD-18 preferred for small instruments and bino-viewers, and allows the convenience of being parfocal with other 1 1/4" TeleVue eyepieces. TeleVue Radian line have designed with extremely wide field, full field sharpness and comfortable long eye-relief for amateurs, who need eyeglasses.

Pupil Guide is unique development, that helps non-eyeglass wearers, especially novices, zero-in and stay centered on the exit pupil. The Pupil Guide is included with all Tele Vue Radian eyepieces and fits under the soft, fold-down rubber eyeguard.

Specifications for TeleVue Radian ERD-18.0 eyepieces ERD18:

Focal Length:		18mm
Apparent Field of View:		60°
# of Elem.:		6
Barrel Dia.:		1 1/4"
Eye-relief:		20mm
Weight:		0.49 lb / 7.8 oz
Field Stop diameter:		18.3mm
Works in Bino Vue:		Y

Features of TeleVue Radian ERD-18.0 eyepieces:

• Long eye-relief

Package Contents:

• TeleVue Radian ERD-18.0 eyepiece

TeleVue Radian 18.0mm Eyepiece ERD-18 Rating & Reviews