The Feather Touch TRUE 3-Inch - Dual Speed Telescope Focuser from Starlight Instruments:
This Feather Touch TRUE 3-Inch Diameter - Dual Speed Telescope Focuser, has a 3.5-inch Draw Tube Travel, and brake.
The TRUE 3-Inch focuser has the same design and style that you have come to love but over-sized to allow and accept 3-inch viewing accessories.
The opening of the draw tube on the visual side of the focuser is greater than 3-inches which allows the focuser to accept a 3-inch viewing accessory.
Note: The SI-FTF3235B-A comes standard on the Explore Scientific ES152 Telescope.
- Draw Tube Thread: M86X1
- Draw Tube Travel: 3.5-Inches (88.90 mm)
- Lifting Capacity: 15 to 17 pounds
- Thread on Entry (OTA, Front) Side of Draw Tube: M120x1 when using
- Reduction Ration: 10 to 1
- Finderscope hole thread dimension: 8-32
- Draw Tube Drive mechanism: Rack/ Pinion
- weight of focuser: 3.99-pounds, of which includes the standard adapter and 2-inch compression ring end cap
- Racked In from Mounting Face: 3.675-inch (93.27 mm)
- Racked Out from Mounting Face: 7.368-inch (187.15 mm)