Achieve very fine critical focus by upgrading your 2.7" or Traveler Focuser with the Feather Touch Micro Upgrade. This dual-speed pinion assembly features a 9:1 speed reduction knob designed and produced for Astro-Physics by Starlight Instruments. The coarse-focus knobs allow you to rack the drawtube out quickly, and the fine knob is used to find and hold the final focus point. Ideal for very high powers with short focus oculars and Barlow amplifiers. It will also allow quick, precise manual focusing with CCD cameras. You'll love the smoooooooth feel and the very cool reflection of the gold anodized knob on the polished aluminum knob.
We highly recommend the dual-speed focuser for both visual and imaging use. When manually focusing your CCD or DSLR camera, you will see improved accuracy and ease. Adding the Starlight Instruments’ "Focuser Boss Digital Kit" allows automated focusing using FocusMax or any of the many automated focusing software.
This upgrade is available for most focusers and refractors shipped since July 2001. This includes scopes purchased from RC Optical, Optical Guidance Systems, Parallax Instruments, D&G Optical and Telescope Engineering Company that have Astro-Physics focusers. In order to determine whether your focuser can be upgraded, please compare the hole pattern of your focuser's pinion block to these focuser block photos.
If your Traveler was shipped between March - September 2001 and your pinion block looks like this focuser block photo (part # A1034), please give us a call for special instructions.
Regrettably, all other scopes shipped prior to July 2001 cannot be retrofit with this Feather Touch Micro assembly due to the configuration of the pinion block. However, in most cases, complete new focusers can be easily installed onto your Astro-Physics refractor. Please refer to the information regarding the new 2.7" Focuser (27FOC3E-FT) and new Traveler Focuser (TFOC3E-FT), both featuring greaseless drawtubes and the
A digital focusing system is available for imaging automation. Visual observers may also enjoy using the available hand paddle with the digital system. See the Focuser Boss II Electronic Focusing Control Kit for more details.