Fits in 2" telescope focusers, and accepts 2" eyepieces or accessories. Threaded for use with standand 2-Inch astrophotography filters.
Features two locking thumbscrews to secure any inserted astronomy accessory, with a brass compression insh to prevent the marring of your telescope accessories.
Extension tube provides extra focuser "back travel" often needed for short-range terrestrial viewing through a telescope, or for astrophotographic applications.
With this simple and useful device, you can extend the focal length of your telescope 35mm or a little more. The various models have focal lengths of 35mm, 50mm and 80mm which you can find in our store, the required spacing can be achieved by combining several extenders of differing lengths,you can use 1 piece, 2 pieces , 3 pieces of the extension tube adapter as you like.
Machined of high quality aluminum and anodized black, durable for long time use.
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