By limiting the field to 60 deg. (a Radian = 57.3 deg.) and establishing a uniform 20mm eye-relief, Tele Vue reworked the Nagler concept using the latest glass types to achieve optimum full field sharpness, freedom from distortion, freedom from ghosting (for critical planetary viewing) along with a unique adjustable eyeguard assembly which Tele Vue calls "Instadjust" Instadjust was developed from the need for proper eye position for non-eyeglass wearers. It is essential, since with Radian's long eye-relief, non-eyeglass wearers would easily tend to get too close to the eyepiece, resulting in vignetting the field, just as you would moving out from the exit pupil. The click-stop, Instadjust eyeguard permits fast, accurate positioning of the eye to the exit-pupil with maximum suppression of... Less

Supporting your telescope isn't enough, cradle it! Within a Tele Vue yoke and cradle head, your telescope balances at its center of gravity, seemingly "weightless" as you move about the sky. Bearing surfaces of brass, anodized aluminum, and teflon provide the smooth feel needed for accurate movements. For the Tele-Pod and Panoramic mounts, a foam covered handle (not shown) attached to the cradle provides ideal leverage.Our Alt/Az tripods complement the travel-friendly, easy setup nature of Tele Vue scopes. Alt/Az motions are far less cumbersome for visual observing compared to equatorial mounts, and the eyepiece position always remains conveniently upright. There are no counterweights or awkward parts to manage. And, with Sky Tour, electronic setting circles can be added to these... Less

Panoptic 27mm - Housed in a 2" barrel like the 35mm, the 27mm is lighter & smaller. It's perfect for any telescope size, type or speed, where a little more magnification is desired, yet still allows full field viewing with eyeglasses. For example, with the Genesis sdf, it gives 20x and a true field over 3 degrees!With the Panoptic series, Tele Vue has taken the Wide-Field concept to Naglerlike performance levels - A meaningful advance over any eyepiece in its 68 degree field class.Of course, multi-coatings, blackened lens edges, filter threads, rubber grip rings and exemplary construction are standard on all Panoptics. Little niceties such as a cover for the eyeguard, and an undercut in the barrel for extra locking security complete the package. A double identifying ring distinguishes all... Less

Maximize your "spacewalk" experience with the 21mm Ethos. Transform your passage through the Milky Way with the 21mm's nexus of contrast, power and field. Larger deep sky objects and rich star fields are its natural playground. Looking on-axis your field-of-vision is filled with 100º of stars, however wherever you chose to concentrate your attention you'll see sharpness and richer contrast. The optical performance of the 21mm is the work of Ethos lead designer Paul Dellechiaie, who achieved a level of optical aberration correction right in line with his other Ethos designs. Contrast and transmission have been maximized using the same advanced coating techniques and further aided by the internal mechanical design techniques used in all Tele Vue eyepieces. Extending the Ethos focal length... Less

Includes black carry bag..High Performance 2.4" APO doublet, 360mm f/6 objective, OTA only 10"-long, includes 2-stage 1.25" focuser with quick-focus drawtube plus fine-focus helicalExquisitel y machined & anodized all-metal construction with sliding captive dew shieldMaximum True Field: 4.3° Great for terrestrial and astronomical useMaximum Power: 180x with 2-4mm Nagler Zoom for lunar/planetary viewingAdjustable dovetail balancing bar fits all camera tripods, Tele Vue mounts & mounting bracket for SCTsSuper- finder, day/night scope with great telephoto and imaging capability for digital camerasOptional padded carry bag available

Properly designed Barlows do wonderful things: They amplify power, slow the telescope's f/# (improving eyepiece sharpness), and give designers the opportunity to compensate for eyepiece aberrations. Tele Vue Barlows use multi-coated high index glasses for optimum aberration correction, exceptional contrast with virtually no light loss. Observed performance is aberration free, even when tested with f/4 scopes. They improve performance of all eyepieces and telescopes! Compromise image quality in any part of the optical chain and you've compromised every part! Tele Vue product design and execution deliver consummate satisfaction. Every Tele Vue Barlow must pass the same rigorous f/4, full field testing as all our eyepieces. All Tele Vue Barlows now use brass clamp rings for secure, non... Less

Tele Vue 2x 1.25" Barlow Offered in 2x and 3x magnifications, these 1¼" Barlows perform identically. Simply choose either or both based on your eyepiece collection. Features include parfocal- ization, 1¼" filter threads, captive lock screws that won't fall out and full multicoatings. Barlows Concept: I originally designed the Tele Vue Barlow line to complement the high performance of our eyepieces. Only 2 elements of high index glass were required to reduce all aberrations to well below the airy disc in an f/4 system. It has taken a good 15 years, but I think we're finally laying to rest the popular myth of the "degrading Barlow." In a 1997 Sky & Telescope review, Terrence Dickenson wrote "...Technology has erased the old objections. A modern Barlow will not degrade your telescope's... Less

Allows the use of Vixen and most other Finder-Scopes up to 50mm in diameter, to attach directly to Tele Vue Rings Mounts. Poduct includes finder holder with six adjusting screws (used to align optical path with main telescope tube), Dovetail and quick release bracket enabling mounting and quick release from Tele Vue Ring Mounts

TeleVue Telescope Accessories 2.5x Powermate Image Amplifier PMT2513. 5x Powermate Image Amplifier PMT-2513

Boasting long 20mm eye relief and short focal lengths, Radians excel for comfortable viewing at the higher powers needed to study planetary and lunar detail as well as compact deep-sky objects. Their six- to seven-element lens design exhibits the renowned Tele Vue quality, providing flat, sharp images over the entire 60-deg apparent field. Radians are fully multi-coated for superior light transmission, and all are parfocal, eliminating the need to refocus after switching eyepieces. The Instadjust click-stop eyeguard positions your eye right where you need it to see the full field of view, whether you wear glasses or not. All have 1.25-inch barrels, which are threaded for filters. Radians are ideal for use with telescopes of any size, type, or f-ratio.