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Review Summary
Tele Vue 3" Focusers
Fits 3" focusers
2" or 11/4" (requires adapter and tunable top)
1.15x
80mm
5.125"
3.40" x 24 TPI
After meticulous engineering, the Tele Vue Big Paracorr Type-2 emerges as a pinnacle accessory for 3" focusers, designed to elevate the performance of Newtonian reflecting telescopes. This paramount optical corrector is the solution to coma, an aberration that causes stars to appear with blurry, comet-like tails radiating from the center of the field. The Big Paracorr Type-2 is specifically crafted to combat this effect, ensuring the sharpest and most pristine visual experience across the entire field of view.
The Tele Vue Big Paracorr Type-2 is a testament to the brand's commitment to excellence, seamlessly integrating with the revolutionary 82-degree Nagler and 100+ degree Ethos eyepieces. This combination unlocks the potential for expansive, flat, and impeccably corrected visual fields, propelling your "spacewalk" observing sessions to celestial heights.
With the Big Paracorr Type-2, the clarity of star images is significantly enhanced on all telescope f-ratios down to f/3, without introducing any false color or spherical aberration. This means that even at the edges of the field, objects like the M-13 cluster remain sharply resolved, drifting serenely across your view without the need for constant repositioning.
Ease of use is at the heart of the Big Paracorr Type-2 design. It effortlessly slides into your focuser in the same manner as a Barlow lens, while a mild 15% Barlow effect ingeniously extends the focus outward to minimize in-travel. This corrector is not only optimized for Tele Vue eyepieces, including Plossls, Radians, Panoptics, Naglers, Ethos, and Delos, but also maintains compatibility with other eyepiece brands.
For visual use, the Big Paracorr Type-2 can accommodate both 2" and 1¼" eyepieces. The 1¼" eyepieces utilize a special low-profile adapter, ensuring a secure and precise fit. Additionally, the corrector is threaded to accept 2" filters, further enhancing its versatility.
The Paracorr Type 2 optical assembly is also available in a specialized adapter housing created by Starlight Instruments for their Feather Touch focusers, negating the need for a tunable top and optimizing eyepiece positioning. Some Dobsonian telescope manufacturers have even integrated this advanced corrector as a standard feature with the Feather Touch focuser.
Astrophotographers will find the Big Paracorr Type-2 equally indispensable. By detaching the lens assembly from the Tunable Top, the corrector can be adapted for use with DSLR and CCD cameras, requiring only the appropriate threaded accessory tubes and camera mounts for connection.
In summary, the Tele Vue Big Paracorr Type-2 for 3" focusers is an essential upgrade for astronomers and astrophotographers alike, designed to deliver the ultimate in sharpness and clarity for an unrivaled observational experience.