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Models & Brands: Tele Vue PMT4201, Tele Vue PMT2513, Tele Vue, TELE VUE, Tele Vue blw3125, Meade 07284, Adorama, Meade 07568, Konus 1047, Adorama

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Tele Vue PMT4201
Tele Vue PMT4201
Weight: 1.4 pounds
List Price: $395.00
Price: $310.00
Key features Tele Vue PMT4201
  • 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).
  • Vignetting, edge field aberrations and pupil movement - all introduced when using Barlows with long focal length eyepieces, are minimized.
  • Higher magnifications are possible with high optical performance compared to "doubling up" Barlows.
  • 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 increase).
  • Model: Tele Vue 4x Powermate Barlow Lens 2".

Review Tele Vue 4x Powermate Barlow Lens 2". / Tele Vue PMT4201:

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 4X 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 a 5. 5mm with the 4X POWERMATE! The 2" 4X POWERMATE is threaded for 48mm filters. Dobsonian/Newtonian owners using Tele Vue's Paracorr coma corrector should place the 2. 5x or 5x POWERMATE (or Tele Vue 2x or 3x 1-1/4" Barlows) into the Paracorr's 1-1/4" adapter (i. e. , between the Para.
Tele Vue PMT2513
Tele Vue PMT2513
Weight: 0.55 pounds
List Price: $280.00
Price: $195.00
Key features Tele Vue PMT2513
  • 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
  • Vignetting, edge field aberrations and pupil movement - all introduced when using Barlows with long focal length eyepieces, are minimized.
  • Latest Version, Accepts the T-Ring Adapter
  • Model: Tele Vue 2.5x Powermate Barlow lens 1.25" - T Ring Adaptable.

Review Tele Vue 2.5x Powermate Barlow lens 1.25" - T Ring Adaptable. / Tele Vue PMT2513:

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.
Tele Vue
Tele Vue
Weight: 0.4 pounds
List Price: $60.00
Price: $55.00

Review Tele Vue T Adapter 1.25" for Rangers. / Tele Vue:

The Camera Adapter allows you to attach your 35mm camera to the TeleVue Genesis/Pronto telescope (requires a T-mount. ).
TELE VUE
TELE VUE
Weight: 0.55 pounds
Price: $70.00
Key features TELE VUE
  • Optimizes correction amount by adjusting eyepiece distance to Paracorr lens
  • Simply loosen the screw and rotate the Tunable Top to adjust
  • Model: Tele Vue Paracorr Tunable Top

Review Tele Vue Paracorr Tunable Top / TELE VUE:

All Newtonian/Dobsonian telescopes can benefit from using a TeleVue Paracorr (Parabola Corrector) to eliminate coma in the image. One aspect to optimizing this correction is the distance of the eyepieces focus point (field stop location) to the last surface of the Paracorr lens (within a small +/- tolerance of course). Typical eyepieces used with fast Newtonians can have field stop locations differing by as much as half an inch. To accomodate for the differences, we developed the "Tunable Top. " The "Tunable Top" permits optimized aberration control for all TeleVue eyepieces and many others, by simply loosening a screw and rotating the Tunable Top. The eyepiece barrel height raises and lowers, allowing you to maintain the proper field stop to Paracorr lens distance.
Tele Vue blw3125
Tele Vue blw3125
Weight: 0.5 pounds
List Price: $160.00
Price: $110.00
Key features Tele Vue blw3125
  • Tele Vue's 3x Barlows were envisioned as a magnification window
  • Model: Tele Vue 3x Barlow Lens, 1.25".

Review Tele Vue 3x Barlow Lens, 1.25". / Tele Vue blw3125:

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. Tele Vue's 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. The Tele Vue design approach includes mechanical conveniences. The Barlows are parfocal with Tele Vue eyepieces. The 3X Barlow is threaded for 1 1/4" filters.
Meade 07284
Meade 07284
Weight: 2.6 pounds
List Price: $249.00
Price: $134.95
Key features Meade 07284
  • Meade #608 Dew Shield, for 7" and 8" SCT's - 07284
  • MEA
  • Model: Meade #608 Dew Shield, for 7" LX200 or LX200GPS and All 8" SCT's

Review Meade #608 Dew Shield, for 7" LX200 or LX200GPS and All 8" SCT's / Meade 07284:

In moist climates water particles suspended in the atmosphere may condense on the front surface of the telescope's correcting plate. This dew formation may be inhibited to a significant extent by the addition of a Dew Shield, essentially an extension tube attaching to the front-cell of the telescope. The #608 Dew Shield is for the Meade 7" Maksutov and 8" SCT models.
Adorama
Adorama
Weight: 0.55 pounds
Price: $49.95

Review Adorama T-Thread Adapter Kit for the Canon Powershot A30 & A40 Digital Cameras. / Adorama:
Meade 07568
Meade 07568
Weight: 0.4 pounds
List Price: $199.00
Price: $125.94
Key features Meade 07568
  • MEA
  • Meade Plssl 25mm Illuminated Reticle CCD Framing Ocular (1.25"), Wireless - 07568
  • Model: Meade Plossl 25mm Illuminated Reticle CCD Framing Ocular (1.25"), Wireless

Review Meade Plossl 25mm Illuminated Reticle CCD Framing Ocular (1.25"), Wireless / Meade 07568:

This ocular helps you compose astronomical images to fit the dimensions of Meade's Deep Sky Imager CCD chips. Includes illuminated "frames" for DSI and DSI II CCD chip sizes. A lockable spacer allows eyepiece to be parfocal with your imager. Variable brightness. Wireless only.
Konus 1047
Konus 1047
List Price: $49.99
Price: $44.99

Review Konus 45 Degree Erecting Prism; 1.25" / Konus 1047:
Adorama
Adorama
Weight: 0.6 pounds
Price: $49.95

Review Adorama T-Thread Adapter Kit for the Canon Powershot S-1 & IS Digital Cameras. / Adorama:

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