Tele Vue Radian Eyepieces
The long eye-relief eyepiece with instadjust eyeguards
"What sets Radians apart from other long eye-relief, short focal length eyepieces is superb image quality. Even discerning planetary observers who customarily choose plossl or orthoscopic designs are switching to radians" - Sky & Telescope, December 1999.
By optimising the design with fully coated exotic glass, Tele Vue achieved their goal of full field sharpness with true orthoscopic linearity, highest contrast for critical planetary viewing, and compact size!
The size and weight blend of these Radian eyepieces make them preferable for small scopes and bino-viewers, and have the added convenience of being parfocal with other 1 ¼ inch Tele Vue eyepieces.
| Focal Length (mm) |
Barrel Size (in.) |
# Elements / # Groups |
Apparent Field of View (deg.) |
Parfocal Group |
Eye Relief (mm) |
Weight (lb / oz) |
Price | ||
| 18 | 1¼" | 6/4 | 60 | B | 20 | 0.49/7.8 | £169.00 |
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| 14 | 1¼" | 6/4 | 60 | B | 20 | 0.54/8.7 | £169.00 |
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| 12 | 1¼" | 6/4 | 60 | B | 20 | 0.53/8.5 | £169.00 |
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| 10 | 1¼" | 6/4 | 60 | B | 20 | 0.54/8.7 | £169.00 |
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| 8 | 1¼" | 6/4 | 60 | B | 20 | 0.60/9.6 | £169.00 |
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| 6 | 1¼" | 7/5 | 60 | B | 20 | 0.79/12.6 | £169.00 |
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| 5 | 1¼" | 7/5 | 60 | B | 20 | 0.80/12.8 | £169.00 |
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| 4 | 1¼" | 7/5 | 60 | B | 20 | 0.76/12.1 | £169.00 |
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| 3 | 1¼" | 7/5 | 60 | B | 20 | 0.77/12.3 | £169.00 |
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