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Description

Suitable for 60 and 70mm refractors and some reflectors.

Doubles the magnification of all your 1.25" diameter eyepieces

The Barlow lens is used to multiply the focal length of the objective lens and consequently the magnifying power of the telescope with any given eyepiece. It is inserted between the diagonal and the eyepiece. The benefits of using a Barlow lens to increase magnification are:

Improved eye relief.
Reduced spherical Aberration in the eyepiece.

Two variants available of the long tube type pictured and described on the new Sky Watcher website; link is http://www.skywatcher.com/swti nc/product.php?id=249&clas s1=5&class2=502

This auction can be for either if in stock, or a short version which is always in stock and is the most popular.