Starlight Instruments Feather Touch FTF2020BCR-LW 2-Inch Focuser
The ultra-lightweight 2" high-end focuser offers a 50mm focus travel and is suitable for self-building and upgrading telescopes.
♦ Only about 0.4kg light due to material saving design and other processes
♦ 2" barrel with compression ring on eyepiece side
♦ Dovetail on the telescope side with a diameter of 69.6 mm; suitable telescope adapters are available
♦ Extension Tube Adjustment Range - 50.8mm
♦ Minimum overall height with the internal extension position of only 37mm: The extension tube protrudes 37mm on the side of the telescope, so the extension is not suitable for Newtonian telescopes.
♦ No tilt guaranteed when fixing pull-out position
♦ 10:1 micro reduction for precise focus
♦ Particularly accurate 2" clamp - important for astrophotography
€1,290.00
(VAT incl.)
Reference:
46481
Starlight Instruments FTF2020BCR-LW: The 2-Inch Ultralight Focuser
The proven 2020BCR has been further developed to achieve the best possible weight savings while maintaining maximum stability.
The focuser was freed from excess material through cutouts and more precise processing and therefore weighs approximately 405g.
It stands as stable as the normal extension and can be loaded up to approx 4kg.
Starlight Instruments 2" Feather Touch Focuser
The extracts of this manufacturer are among the best. All running parts are made of hardened stainless steel to achieve the best possible smooth running even under maximum loads. The focusers have no signs of wear. Even years later, the fit is the same as the first day. Hardened stainless steel wheels and a hardened stainless steel running surface ensure smooth yet highly precise adjustment.
The adaptation of the focuser to the telescope
The focuser has a dovetail ring that fits various Starlight and TS-Optics adapters. This allows you to attach the focuser to the telescope.
♦ Rear sight telescopes (refractor, Cassegrain...) - The focuser housing is very short, only 37 mm. Therefore, the focuser can be used with telescopes with a narrow focal position.
♦ Side View Telescopes (Newton) - matching bases are linked. However, this focuser is not recommended for use with Newtonian telescopes, as the focuser tube protrudes far into the tube when the shortest focuser position is set. For Newtonian telescopes, we recommend the FTF2015BCR (or FTF2015BCR-LW), which has a smaller adjustment range and allows for a shorter drawtube.
Especificaciones:
| Model: | 2" dual-speed focuser |
| Speed reduction: | 1/10 |
| Travel: | 50.8 mm (2.0") |
| Minimum height: | 37 mm (without telescope-side ring dovetail) |
| Outer diameter of the drawtube: | 64.5 mm |
| Length of the drawtube: | 75 mm |
| Diameter of the telescope-side ring dovetail: | 69.6 mm |
| Eyepiece clamping: | with brass compression ring |
| Racked in from mounting face: | 1.405" / 35.687 mm |
| Racked out from mounting face: | 3.505" / 89.027 mm |
| Weight: | approx. 0.894 pounds (0.405 kg) |
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