Buy Televue 2x Big Barlow 2 inchTelevue 2x Big Barlow 2 inch Product Description:
- A High Point Certified Pre-Owned Telescope Accessory.
- Comes with a full 90 Day High Point Warranty.
- Condition Grade - 9.7 (Mint Condition).
- Made In USA!
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
Customer Reviews
Most helpful customer reviews
3 of 3 people found the following review helpful.
Excellent!
By Anton
This 2x Barlow Lens from Tele Vue is exactly what I needed for my XT12i telescope.The quality of my eyepieces (31mm and 7mm Tele Vue Naglers) is in no way degraded. Just as when using one of these premium eyepieces by itself, there is no disortion around the edges of the lens and the clarity is equally impressive.Having the option of using both 2" and 1.25" eyepieces is also a big plus with this barlow.I can only say good things about this product. I am one of those people who would rather spend more money up front to avoid paying more later. These Nagler lenses are a perfect example of buying quality products to avoid spending more money later on upgrades.I highly recommend the Tele Vue 2x Barlow as well as the above mentioned eyepieces! You will SEE the difference in quality from the moment your put your eyes up to your scope!
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