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Product Discontinued by Manufacturer
TeleVue Radian 4.0mm Eyepiece ERD-04 has been discontinued by Tele Vue and is no longer available. Our product experts have helped us select these available replacements below.
Product Info for TeleVue Radian 4.0mm Eyepiece ERD-04
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" OpticsPlanet. 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