GSO Barlow lens 2x / 1,25'' with T-2 thread Eyepieces opinie


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GSO Barlow lens 2x / 1,25'' with T-2 thread
 
 
Availability: In stock, can be sent within 24 hours

 

 
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Baroque GSO 2x lens in a 1.25 inch frame - a two-element, achromatic optic fully coated with anti-reflective layers providing excellent color correction and good optical performance. Good blackening of the lens sleeve virtually eliminates reflections. Additional feature: allows you to connect the camera with interchangeable optics directly to the T-2 thread

In addition, Barlow lens allows you to use as Barlow 1.5x and photographic adapter, according to variants below.

Variant I - 2x Barlow lens
The use of a complete lens allows for a 2-fold increase in the magnification of the eyepiece used. For example, the 30mm eyepiece with the Barlow lens will function like a 15mm eyepiece.

Variant II - Barlow lens 1,5x
The optical element of the Barlow lens placed in a metal frame can be unscrewed from the sleeve and screwed into the filter thread of the eyepiece, which is compatible with almost all 1.25 "glasses. Installing it in the eyepiece using a filter thread of the eyepiece we obtain a system allowing 1 Magnification of the eyepiece used 5 times, for example, a 30 mm eyepiece with an optical element of the Barlow lens will function like a 20 mm focal length eyepiece.

Variant III - 30 mm spectacle adapter
A lens barrel without an optical element can be used as an eyepiece adapter (extension) with a length of 30 mm.

Variant IV - photo adapter for T2 thread
If the telescope extractor is not finished with T2 thread, then after unscrewing the Barlow lens element, it turns into a 1.25 / T2 photographic adapter.

What are the benefits of using the Barlow lens?

The basic benefit of using Barlow's lenses is that they allow you to limit the number of glasses while providing a large span of available magnifications. For example, having 2 glasses with 30 and 15 mm focal lengths, using the Barlow lens we get an additional two magnification corresponding to 10 and 5 mm focal length spectacles. In addition, the Barlow lens does not change the eye- shadow offset of the eyepiece ( eye relief ), allows you to focus farther away from the tube (when you have a problem with sharpening the image) and allow you to extend the focal length twice while taking pictures of the sky in the lens focus.

Technical parameters

• Multiplicity: 2x (optionally 1.5x, vide : above)
• Diameter of binding: 1.25 inches
• Anti-reflective layers: FMC
• T2 adapter (M42 * 0.75): YES

Warranty

2 years








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