Feather Touch® Rotatable 2.0" Diameter Dual Speed 0.8" Draw Tube Travel, Brake, 57mm Accessory Thread (fits 'Borg') FTF2008B-M57
|Delivery time:||Ships Next Day|
Feather Touch® 2.0" Dia Dual Speed 0.8" Draw Tube Travel, Brake, 57mm Accessory Thread (fits 'Borg')
The focuser requires 2 of part#7459, 1 on the visual side of the draw tube and 1 on the scope side of the draw tube. Part#7459 can be purchased from AstroHutech.
M57 Version of Feather Touch Focuser
For Borg and many other Japanese-made telescopes, a version of the Feather Touch Focuser with a metric M57 interface is available. Use of this coupling allows for the direct attachment of many available Borg accessories and has the additional benefits of providing a larger opening with a very rigid connection, compared to coupling with the alternative 2" nose-piece coupling.
Above, the M57 Feather Touch Focuser is shown in a photographic configuration with Borg camera rotator ring 7352, 0.85x focal reducer 7887, and the available motorized focuser option. For visual use, Borg M57 extension/2" accessory holders such as part #7504 may be substituted for the rotator ring and focal reducer.