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TeleVue Radian 4 mm eyepieces ERD04 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-04.0 eyepieces:

Focal Length:		4mm
Apparent Field of View:		60°
# of Elem.:		7
Barrel Dia.:		1 1/4"
Eye-relief:		20mm
Weight:		0.76 lb / 12.1 oz
Field Stop diameter:		4.2mm
Works in Bino Vue:		Y

Features of TeleVue Radian ERD-04.0 eyepieces:

• Long eye-relief

Package Contents:

• TeleVue Radian ERD-04.0 eyepiece

TeleVue Radian 4.0mm Eyepiece ERD-04 Rating & Reviews