Starlight Feather Touch 3" Crayford Focuser - 3.5" Tube Travel
Starlight Instruments 3" Feather Touch dual speed focuser - 88.9 mm travel
This focuser is for all amateur astronomers who needs a bigger focuser than 2" which should be compact.
The focuser especially offers a better illumination, needed for working with larger sensors. With 88.9 mm, the travel range is generous and allows for using the focuser on instruments with large back-focus.
The advantages of the Feather-Touch focusers from Starlight:- 100% correct position of of the image plane - no tilting or bending
- good illumination also for larger sensors
- gear reduction for exact focusing
- free adaption to different telescope types (connection adapters can be found at the accessories recommendations)
- Brake for adjusting of the drag makes clamping unnecessary
- adjusting and bearing are uncoupled
- brass gear rack and hardened stainless steel gear wheels ensures precise adjustment even under maximum load
- long life cycle - the Feather Touch focuser is made for at least the life of the telesope it is attached to
- wide range of accessories and adapters available, including motorisation
Note: connection adapters to the telescope and eypiece-side adapters are not included in the scope of delivery.
Connection adapters to the telescope are listed under "Accessories for mounts".
Eyepiece-side and camera-side adapters are listed under "Adaptors".
Scope of Delivery:
- focuser (without Eyepiece-Adapter)
Products specifications
|
Focuser type
|
3" Rack and Pinion Focuser |
|
Reduction
|
1 : 10 Micro Focusing |
|
Made for telescope type
|
Refractor |
|
Unobstructed inner diameter
|
76.2 mm |
|
Max. Payload
|
15.4 lb |
|
Travelling distance
|
88.9 mm |
|
Racked In from Mounting Face
|
93.7mm |
|
Racked Out from Mounting Face
|
187.15mm |
|
Modell / Draw Tube Drive Mechanism
|
R&P focuser |
|
Connection to eyepiece
|
M75x1mm female |
|
Lifting Capacity
|
until 7Kg |
