Starlight Feather Touch FTF3035B-A 3" Crayford Focuser - 88.9mm Travel
The FTF3035B-A is a high-end focuser for apo refractor telescopes for applications such as astrophotography.
♦ Extension tube adjustment range 88.9 mm
♦ 100% correct field level position - extension tube does not yield
♦ 76mm free illumination, so full frame tiles are also illuminated
♦ Extension tube adjustment by rack and pinion. The draw tube itself is smooth in a combination of Teflon and stainless steel.
♦ Shown with optional port adapter with rotation
♦ 2" adapter is included in the scope of supply
Starlight Instruments 3" Feather Touch Focuser with Micro Reduction - 88.9mm Adjustment Range
This focuser is for all star lovers who need a focuser larger than 2" but still want it to be compact.
Above all, the extract offers better lighting, which is necessary for working with larger chips. The adjustment range is generously dimensioned at 88.9 mm and is therefore also suitable for refractors with a large back focus.
The advantages of Starlight Feather-Touch focusers:
♦ 100% correct position of the image plane - no tilt
♦ Good illumination even for large sensors
♦ Micro reduction for more precise focus
♦ Free adaptation to different types of telescopes (connection adapter see recommended accessories)
♦ Brake for free resistance adjustment - eliminates the need for clamping
♦ Regulation of the extension tube by rack and pinion decoupled from the bearing
♦ Brass toothed racks and hardened stainless steel toothed wheels ensure a responsive fit even under maximum loads
♦ Long life: the Feather Touch focuser is for life
♦ Wide range of accessories and connection adapters, as well as the possibility of motorization
Note: Telescope connection adapters and adapters on the eyepiece side are not included in the scope of delivery.
Telescope connection adapters are listed under "Mounting Accessories".
Eyepiece and camera-side adapters are listed under "Adapters."
Especificaciones:
| Tube travel: | 88.9 mm (3.5") |
| Clear aperture: | 76.2 mm (3") |
| Stray light treatment: | internal baffle system for avoiding stray light |
| Rotation: | 360° rotation with optional connection adapter |
| Connection telescope side: | dovetail ring clamping |
| Connection eyepiece side: | M75x1mm female thread |
| Lifting Capacity: | up to 7 kg |
| Racked In from Mounting Face: | 93.27 mm |
| Racked Out from Mounting Face: | 187.15 mm |
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