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Astro-Physics 2.7



The silky smoothness of the 2.7" Astro-Physics focuser and the dual-speed mechanism of the Feather Touch Micro are both realized in this superb focuser. The dual-speed feature is particularly advantageous for critical focusing of scopes with fast focal ratios. This focuser also features Astro-Physics' new greaseless drawtube.
  

Three thumbscrews are provided for an extra measure of security for your heaviest and most-valuable accessories, but one is sufficient for most applications. If you prefer a single thumbscrew, simply remove the extra ones and store them for later use. Note: the photo shows the adapter with a single thumbscrew.
  

The engraved version is offered to owners of Astro-Physics refractors shipped prior to July 1, 2001, as a replacement for their original focuser. To substitute focusers, simply loosen the set screw on the underside of the original focuser and thread the focuser from the tube. Attach the new one, position with respect to the finder bracket holes, tighten the set screw and you are ready to go.
  

Overview
  • Greaseless drawtube
  • All components machined of high-quality aluminum – housing is black anodized
  • Brass locking rings secure focuser drawtube, 2" accessories and 1.25" accessories
  • 2" adapter
    • Aluminum, black anodized
    • Screws into focuser drawtube
    • Brass locking ring
    • 3 thumbscrews
  • 1.25" adapter
    • Aluminum, black anodized
    • Slips into 2" adapter or 2" diagonal
    • Brass locking ring and thumbscrew
    • Threaded for 48mm filters
  • Inside diameter of focuser draw tube: 2.7"
  • Thread pitch: 24 threads per inch
  • Focus travel with 2" adapter: 4.4"
  • Focus travel with telecompressor: 5.0"
  • Overall length of focuser when fully racked in with 2" adapter: 4.8"
  • Overall length of focuser when fully racked in with 1.25" adapter: 5.25"
  • Weight of the focuser with 2" and 1.25" adapters: 5.25 lbs (2.4 kg)

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