TeleVue Radian Eyepieces

Some of us may need to wear eyeglasses while observing, while others simply prefer the greater comfort offered by eyepieces with long eye relief . This can be especially true for planetary observing where we tend to spend long periods at the eyepiece studying a single object. TeleVue Radian eyepieces offer a comfortable 20mm of eye relief combined with a 60 degree apparent field. They employ fully multicoated exotic glasses, providing full field sharpness, true orthoscopic linearity and high contrast for critical planetary viewing. The size and weight blend also makes the Radian preferable for small instruments and bino-viewers, and allows the convenience of being parfocal with other 1¼" TeleVue eyepieces.

• 60° AFOV with full-field sharpness on any f/# telescope
• High efficiency, tuned multi-coatings to maximize contrast
• Adjustable eyeguard for blocking ambient light, fully retractable so as not to rob eye-relief
• 20mm Eye-Relief for eyeglass wearers or Dioptrx users
• Distortion correction for day and night use
• Compact size and weight: bino viewer friendly

"What sets Radians apart from other long eye-relief, short-focal-length eyepieces is superb image quality. Even discerning planetary observers who customarily choose Plössl or orthoscopic designs are switching to Radian." — Sky & Telescope, December 1999.

All TeleVue Radian eyepieces are directly compatible with TeleVue's DIOPTRX™ astigmatism correcting lens system. The performance inherent in EVERY TeleVue eyepiece is verified for you at f/4; quality assurance available nowhere else. What other brand of telescope eyepiece can make that claim?

TeleVue 3mm Radian

The 3mm Radian combines a comfortable 20mm of eye relief with an ultra short 3mm focal length. This is an excellent choice for a high-power eyepiece for short focal length instruments with very fast focal ratios.

$240.00

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TeleVue 4mm Radian

The TeleVue 4mm Radian is an excellent planetary eyepiece when combined with telescopes of up to 1000-1200mm focal length. This author will always remember the Mars opposition of 2003 using this eyepiece in the TV-102 refractor.

$240.00

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TeleVue 5mm Radian

The TeleVue 5mm Radian is generally useful in telescopes up to about 1500mm in focal length, and its generous 20mm eye relief makes it comfortable to use in high power applications.

$240.00

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TeleVue 6mm Radian

The 6mm Radian makes a great start-up planetary eyepiece for telescopes in the 900mm focal length class. The resulting ~150X magnification with these instruments is useful under anything but the poorest of "seeing" conditions.

$240.00

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TeleVue 14mm Radian

The 14mm Radian is a popular choice as a high-power eyepiece for eleven and twelve inch Schmidt-Cassegrains. This combination produces a 1.4mm exit pupil that is useful for both planetary and deep space observing.

$240.00

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