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List Price: $190.00
Sale Price: $179.95
You save: $10.05 (5%)

Description

Televue 90° 1 1/4'' DPC-1250 Everbrite Diagonal

List Price: $190.00
Sale Price: $179.95
You save: $10.05 (5%)

Description

Televue 90° 1 1/4'' DPC-1250 Everbrite Diagonal

Sale Price: $285.00

Description

Whiter and brighter images. Simply put, that is the benefit the Everbrite mirror coating. This exotic, dielectric, nonmetallic coating is 99% reflective across the full visual spectrum, resulting in the "whitest," most natural image available. The coating is painstakingly applied to Pyrex with a surface accuracy of a 1/10 wave flatness. The Everbrite is offered in both 1¼" and 2" models. The diagonal bodies of each are machined from solid blocks of aluminum. In this way we can insure permanent alignment. The one piece body construction also assures heavy accessories can't force the diagonal body to "unscrew" from the barrel as with other brands. Both the 1¼" and 2" models feature brass clamp rings, anti-reflection threads and 1¼" and 48mm filter threads respectively.

Features

• The diagonal body is machined from a solid block of aluminum
• Permanent alignment is assured
• Features brass clamp rings, anti-reflection threads
• The one piece body construction also means heavy accessories can't force the diagonal body to unscrew from the barrel
• Ideal for refractor telescopes

List Price: $295.00
Sale Price: $194.89
You save: $100.11 (34%)

Description

Properly designed Barlows do wonderful things. First, they amplify power while retaining the eyepiece's eye-relief. Second, they slow the telescope's f/#, which improves eyepiece sharpness. Third, the designer can introduce compensations for eyepiece aberrations.Tele Vue's 2" 2x BIG Barlow, 1 1/4" 2x and 3x Barlows were envisioned as magnification windows. Multi-coated high index glasses assure optimum aberration correction, exceptional contrast and virtually no light loss. Tele Vue Barlows achieve their design goals even when tested by the fastest scopes. They even improve our competitor's eyepieces and telescopes!For eyeglass wearers, the Big Barlow is perfect for doubling the power while retaining the eye-relief of 2" Tele Vue eyepieces such as the 55mm Plossl, 35mm and 27mm Panoptics (requires use of Panoptics Barlow Interface) and 20mm Nagler Type 2.Our design approach includes mechanical conveniences. The Barlows are parfocal with our eyepieces and the BIG Barlow includes a parfocal 2" - 1 1/4" adapter. The BIG Barlow is threaded for 48mm filters and has a captive lock-screw. Both 1 1/4" Barlows are threaded for 1 1/4" filters.Barlows do more than just increase magnification; they also retain eye relief (or in the case of long focal length eyepieces, actually INCREASE eye relief). A high quality Barlow must be properly designed and manufactured in order to avoid compromising a telescope's color correction and spherical aberration corr

List Price: $290.00
Sale Price: $215.00
You save: $75.00 (26%)

Description

Tele Vue Barlows: "An Optically Perfect Window " Properly designed Barlows do wonderful things. First, they amplify power while retaining the eyepiece's eye-relief. Second, they slow the telescope's f/#, which improves eyepiece sharpness. Third, the designer can introduce compensations for eyepiece aberrations. The 2.5X Powermate Barlow is a 4-element parfocal, compact amplifying lens system. POWERMATE consists of a negative achromatic doublet plus a positive "pupil-correcting" doublet. While it looks and functions like a Barlow, your eyepiece will operate with pupil locations where the designer intended, avoiding mismatch problems. POEWRMATE optimally mates its power to your eyepieces. No additional "interface lens" is needed, since POWERMATES have it built-in. In addition to full multi-coating, POWERMATE includes other Tele Vue special touches such as a safety undercut on the chrome barrell, and captive lock screws that can't fall out. Tele Vue's 100% QC program at f/4 insures that POWERMATE will add dramatic power (and NOTHING ELSE) to your favorite eyepieces. If, for example, you own a 22mm Panoptic, you'll have the power of an 8.8mm focal length eyepiece with the 2.5x POWERMATE. The POWERMATES are constructed to be parfocal with Tele Vue's 1-1/4" 90 degree diagonal (often used in Ranger telescopes) adding convenience not previously available with any Barlow. The 2.5X POWERMATE has no filter threads Dobsonian/Ne

Features

• Latest Version, Accepts the T-Ring Adapter
• Vignetting, edge field aberrations and pupil movement - all introduced when using Barlows with long focal length eyepieces, are minimized.
• Telecentric operation (field rays leave parallel to optical axis, unlike Barlow lenses which diverge rays). This is ideal for Hydrogen-alpha filter use such as with Daystar models.
• High performance for image amplification, CCD or film (some of the finest Earth-based planetary imaging is being done with Powermates).
• Flexible for visual and imaging with all types of telescopes and eyepieces. Essentially Parfocal, and with nearly constant magnification regardless of image distance behind top surface (except 5x model which increases 1x for every 35mm of image distance i

Description

Tele Vue Radian Eyepiece Concept: "In 1979 I had to sacrifice size cost and weight in the original Nagler design to achieve what were previously mutually exclusive interests; extremely wide field full field sharpness and comfortable eye-relief. Fortunately users agreed that a lifetime of "spacewalk" viewing pleasure justified the investment. Fast forward to 1999. As the hobbyist population ages (along with me) more amateurs need eyeglasses. It was time to adjust the mix of parameters for observers who require or prefer long eye-relief. Under the framework of the "Nagler" design the new field was set at 60° with a uniform 20mm eye-relief. Optimizing this new design with fully multicoated exotic glasses we reached our new goal of full field sharpness with true orthoscopic linearity highest contrast for critical planetary viewing and compact size. 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" Tele Vue eyepieces." - Al Nagler"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 Radian." - Sky & Telescope December 1999Instadjust was developed for maximizing contrast while aiding in proper eye positioning for non-eyeglass wearers. It is essential since with the Radian's long eye-relief non-eyeglass wearers could easily get too close to the eyepiece resulting in vignetting where edge field rays miss your pupil. The push-pull click-stop adjustment permits fast positioning and maximum suppression of environmental stray light.Another unique development is the Pupil Guide. It helps non-eyeglass wearers especially novices zero-in and stay centered on the exit pupil. The Pupil Guide is included with all Radian and Nagler Type 4s and fits under the soft fold-down rubber eyeguard.

Sale Price: $28.99

Description

This bracket is mounted on any 8" or larger Schmidt-Cassegrain telescope and allows the TV-60 to function as a finderscope Requires the Tele Vue SCT Accessory Bracke and the Mounting Block Adapter. Also available as a complete kit

List Price: $60.00
Sale Price: $53.03
You save: $6.97 (12%)

Description

TeleVue Short SCT Adapter ACS-0004

List Price: $69.95
Sale Price: $65.99
You save: $3.96 (6%)

Description

Xstamper extra large custom stamp delivers 1 to 13 lines that include a maximum of 43 characters per line. Ideal for return addresses, company names, check endorsements, special messages and more. Great for large business addresses or important messages. Stamp is pre-inked in either choice of red, black, blue, green or purple and dispenses 50,000 impressions before it needs to be re-inked. Offers ergonomic handle design. Impression size: 1-3/16" x 3-1/8". Contact customer service to customize stamp. Complete orders are shipped within 24 hours of receipt by Xstamper.

Features

• Assembly Required: No, Impression Size: 1.19" Width x 3.12" Length, Impression Type: Custom Message Stamp, Number of Lines: Up to 8 Line with 43 Character per Line
• Sold as 1 each

Sale Price: $232.99

Description

TeleVue Starbeam Telescope Base with Flip Mirror SFT 2003