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  • 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

  • Product description

    Product description

    This anodized, machined aluminum tube provides extra focuser back travel, which is sometimes needed to achieve focus with certain eyepiece/telescope combinations. More back travel is often needed for short-range terrestrial viewing through a telescope, or with use of a field flattener, coma corrector, or focal reducer lens. Adds 2 inches of length extension. This 2" extension tube features two locking thumbscrews and is threaded for use with 2" filters.

    From the Manufacturer

    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

Filed under: Eyepieces & Accessories