Starlight Feather Touch 3.5" Focuser R&P FTF3545B-A - adjustment range 114 mm
The FTF3545 is a high-end rack and pinion focuser, especially for apochromatic refracting telescopes for applications such as astrophotography.
♦ Extension tube adjustment range 114.3 mm
♦ 100% correct field level position - extension tube does not yield
♦ 89mm free illumination, so full frame chips are also illuminated
♦ Screw adaptations through external thread possible
♦ Extension tube adjustment by rack and pinion. The drawtube itself is smooth in a combination of Teflon and stainless steel.
♦ Shown with optional swivel port adapter and optional 3.5", 3", and 2" adapters
♦ 3.5", 3" and 2" adapters are not included in the scope of delivery, but can be ordered separately, see "Configuring items"
Starlight Instruments 3.5" Feather Touch Focuser with Micro Reduction - 114.3mm adjustment range
Starlight's largest focuser and without a doubt one of the best focusers in the world for DIY telescopes and for upgrading telescopes. We recommend the focuser especially for apochromats and for Cassegrain and RC telescopes, as long as the rear aperture is large enough.
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:
En general |
|
| Tipo | Tubo telescópico del ocular  |
| Tipo de construcción | Crayford |
| Clear aperture: | 98 mm (3.5") |
| Stray light treatment: | internal baffle system for avoiding stray light |
| Rotation: | 360° rotation with included connection adapter |
| Connection telescope side: | Locking Collar 5.125x24 male thread |
| Connection eyepiece side: | 4 3/32 X24TPI thread |
| Lifting Capacity: | up to 9 kg |
| Racked In from Mounting Face: | 132 mm |
| Racked Out from Mounting Face: | 247 mm |
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