GSO 2x 2'' ED Barlow lens Barlow lenses opinie

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GSO 2x 2'' ED Barlow lens
 
 
Availability: pre-sale
delivery expected December 6, 2021
pre-sale purchase guarantees the current price and priority order shipment


 
62 EUR
price w/o VAT: 50 EUR

GSO 2x 2\'\' ED Barlow lens
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Barlow lens of excellent optical quality, made of ED (low dispersion) glass, which perfectly corrects chromatic aberration and is perfectly mechanically refined, working with eyepieces with a frame diameter of 2 inches and 1.25 "through the reduction ring included as standard. Attaching this Barlow lens extends the focal length twice. telescope, thanks to which you get twice the magnification with the same eyepiece.
The lens is equipped with a clamping ring in the reduction of 1.25 "and the frame only 2" for optimal pressure and central positioning of the eyepiece
It works especially well in bright telescopes, as it reduces the coma and corrects the curvature of the field.

The main advantage of using Barlow lenses is that they allow you to limit the number of glasses while providing a wide range of available magnifications. For example, having 2 eyepieces with 30 and 10 mm focal lengths, and using a Barlow lens, we get two additional magnifications corresponding to eyepieces with 15 and 5 mm focal lengths. In addition, Barlow lenses do not change the offset of the exit pupil of the glasses ( eye relief ), allow the focus to be extended further from the tube (when we have a problem with sharpening the image) and allow to double the focal length when taking pictures of the sky in the focus of the lens.

Technical specifications

• times 2x
• barrel standard: 2 inch (fits 2 inch hoists)
• optical construction: ED doublet
• exit from the eyepiece side: 2 inch, 2 "/ 1.25" reduction included
• method of attachment from the side of the eyepiece: clamping ring, hold-down ring
• active diameter: 38 mm
• anti-reflective layers: FMC (fully covered)
• filter thread: 2 inch, built-in
• weight: 327 g

Warranty

2 years








HOW TO ATTACH A BARL LENS TO A TELESCOPE




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