Starlight Inst. 3.5" Feather Touch Dual-Speed Focuser - 1.375" DTT

Starlight Inst. 3.5" Feather Touch Dual-Speed Focuser - 1.375" DTT
$925.00
Item # SI-FTF3515B-A
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  • This Starlight Instruments 3.5" Feather Touch Focuser is a dual speed focuser with 1.375" Draw Tube Travel.
  • Known to fit large Ritchey-Chretien and Dobsonian telescopes.
  • The Starlight Instruments 3.5" Feather Touch Focuser has a lifting capacity of 18-20 lb.
Description

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Starlight Instruments 3.5" Feather Touch Focuser w/ 1.375" Draw Tube Travel


Feather Touch 3.5" Diameter Dual Speed Telescope Focuser Kit with 1.375" Draw Tube Travel.

The user's telescope must have at least 4.35" of clearance for the draw tube to go inside of the telescope, if not the draw tube will "bottom-out" and give you more back focus.

Starlight Instruments 3.5" Feather Touch Focuser Specifications...


  • Draw Tube Travel: 1.375" (34.93mm)
  • Known to Fit: Large RC/ Dob Scopes
  • Lifting Capacity: 18-20 lb.
  • Accessory: Locking Collar 5.125 X 24 Female Threads
  • Other Info: 4 3/32 X 24TPI thread on visual side of draw tube
  • Reduction Ratio: 10:1
  • Draw Tube Drive Mechanism: Rack & Pinion
  • Finderscope Hold Thread Dimension: 8-32
  • Racked In from Mounting Face: 5.236" w/ Compression Ring End Cap
  • Racked Out from Mounting Face: 6.625" w/ Compression Ring End Cap


Starlight Instruments Product Number: FTF3515B-A
Additional Information

Additional Information

SKU SI-FTF3515B-A
Manufacturer Starlight Instruments
Focuser Design Feathertouch
Focuser or Mask Size 3.5" Drawtube
Focus Control Manual
Warranty Lifetime Warranty
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Included Items

Included Items

  • Starlight Instruments 3.5" Feather Touch Focuser - 1.375" DTT
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