Televue 2x Big Barlow 2 inch

List Price?: $295.00
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Product 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

TeleVue 2x BIG Barlow Lens 2 Inch with 1-1/4 Adapter - Telescope ... TeleVue 2x BIG Barlow Lens 2 Inch with 1-1/4 Adapter - Tele Vue 2x BIG Barlow 2 Inch with 1-1/4 AdapterOffered in a 2x magnification, the Big Barlow is ideal for ... Tele Vue Optics: Barlows Our Barlows reduce aberrations to below the airy disc in an f/4 system and lay to rest the popular myth of the "degrading Barlow." Amazon.com: Televue 2x Big Barlow 2 inch: Camera & Photo 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 ... Telescope Reviews: Televue big barlow or 2 inch 2X powermate You should start by reading the article at TeleVue's own website specifically explaining the differences between Powermates and Barlows This is a very articulate ... Tele Vue 2x Big 2-inch Barlow Review - Telescope Reviews Tele Vue 2x Big 2-inch Barlow Review Tele Vue 2x Big 2-inch Barlow Review Amazon.com: Televue 2x Barlow 1.25 inch (1-1/4 in.): Camera & Photo Tele Vue Barlows: "An Optically Perfect Window" Properly designed Barlows do wonderful things. First, they amplify power while retaining the eyepiece's eye-relief ... Astronomics - 2X Big Barlow for 2" eyepieces, with 1.25" eyepiece ... Free ground shipping. TeleVue BWC-2211 : This 2 2x Clamp Ring Big Barlow can be used with any telescope using a 2" focuser. As it is only 4.5" long, it can TeleVue BIG Barlow 2x 2-Inch SkiesUnlimited.net The 2X Big Barlow is ideal for Newtonian scope owners. It will be parfocal with both 2 and 1.25-inch eyepieces in this application, and is threaded for 48mm filters. TeleVue 2x Powermate 2 Inch with 1-1/4 Adapter - Telescope ... Go's where no Barlow can go! 2x power; 2 inch format with 1.25 inch ... Comments about TeleVue 2x Powermate 2 Inch with 1-1/4 Adapter: ... BIG-D. from EL PASO TX Tele Vue 2x BIG Barlow 2 Inch with 1-1/4 Adapter Reviews ... Tele Vue 2x BIG Barlow 2 Inch with 1-1/4 Adapter reviews. Find Optics Accessory reviews at Buzzillions including 5 reviews of Tele Vue 2x BIG Barlow 2 Inch with 1-1/4 ...