Starlight Instruments 3.5" Feather Touch R/P Focuser
The Starlight Instruments 3.5″ Feather Touch R/P Focuser has a lifting capacity of 18 to 20 pounds. It comes in drawtube travel of 1.375″ and 4.5″. Starlight Instruments offers a custom 3.5″ focuser for the Takahashi FSQ-106.
Feather Touch Focusers by Starlight Instruments are know for their quality and craftsmanship. They are offered as a standard feature by some of the most recognized telescope manufactures including: Astro-Physics, TEC, Lunt, Tele Vue, CFF Telescopes, Celestron, Takahashi, Borg, APM, Obsession, William Optics, Teeters Telescopes, Orion Optics and New Moon Telescopes.
Starlight Instruments designs, machines, anodizes and assembles the components in-house allowing for superior quality control. A Feather Touch Focuser is an absolute must for astrophotography, in addition to making visual use a joy.
Standard Features Include:
- Ultra-smooth coarse/fine focus knobs (10:1 Ratio)
- Rotatable
- Brake Adjustment Screw
- Glare resistant black internal baffling
- Durable hardened stainless steel, steel, and aluminum construction
- Anodized aluminum fine focus knob
- Standard Drawtube with nylon
- Tipped stainless steel set screws (gentle on eyepieces)
- Ultra-Low backlash system for accurate control
- Sleek aesthetic design
- Designed, machined, and assembled in the U.S.A.
Technical Specifications
1.375″ Travel Drawtube Option
| Draw Tube Travel |
1.375″/34.93MM |
| Known To Fit |
Large RC/Dob Scopes |
| Lifting Capacity |
18-20 pounds |
| Accessory |
Locking Collar 5.125X24 Female Threads |
| Other Info |
4 3/32 X24TPI thread on visual side of draw tube |
| Reduction Ratio |
10:01 |
| Draw Tube Drive Mechanism |
Rack/Pinion |
| Finderscope hole thread dimension |
8-32 |
| Weight of focuser |
5.216 pounds of which includes the standard adapter and 2″ compression ring end cap |
| Racked In from Mounting Face |
5.236″ w/Compression Ring End Cap |
| Racked Out from Mounting Face |
6.625″ w/Compression Ring End Cap |
4.5″ Travel Drawtube Option
| Known To Fit |
Large Refractors |
| Lifting Capacity |
18-20 pounds |
| Draw Tube Thread |
4 3/32 X24TPI thread on vizual side of draw tube |
| Draw Tube Travel |
4.5″/114.30MM |
| Accessory |
Locking Collar 5.125×24 Female Thread |
| Other Info |
Focuser weighs 6 pounds |
| Draw Tube Drive Mechanism |
Rack/Pinion |
| Finderscope hole thread dimension |
8-32 |
| Reduction Ratio |
10:01 |
| Weight of focuser |
5.938 pounds of which includes the standard adapter and 2″ compression ring end cap |
| Racked In from Mounting Face |
5.236 w/Compression Ring End Cap |
| Racked Out from Mounting Face |
9.736″ w/Compression Ring End Cap |
In the Box
Focuser
Manual & Warranty
Starlight Instruments Lifetime Warranty
Starlight Instruments Feather Touch Focusers Brochure
