2" Orion Telescope Eyepiece Extension Tube

Features

• Extension tube provides extra focuser "back travel" often needed for short-range terrestrial viewing through a telescope, or for astrophotographic applications
• Adds 2" of extension, fits in 2" telescope focusers, and accepts 2" eyepieces or accessories
• Features two locking thumbscrews to secure any inserted astronomy accessory
• Threaded for use with 2" Orion eyepiece and astrophotography filters
• Machined and anodized aluminum tube

List Price?: $21.99
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Product Description

Technical Information

Customer Reviews

Product Description
These anodized, machined aluminum tubes provide extra focuser back travel sometimes needed to achieve focus with certain eyepiece/telescope combinations. More back travel is often needed for short-range terrestrial viewing or with use of a field flattener, coma corrector, or focal reducer lens. We offer 1.25" and 2" models, which fit 1.25" eyepieces and 2" eyepieces, respectively. Each adds 2" of length extension. Each also has two locking thumbscrews and is threaded for filters.

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