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Starlight Instruments Feather Touch Micro Focuser for Celestron C9.25 SCT
Starlight Instruments Feather Touch Micro Focuser for Celestron C9.25 SCT
Starlight Instruments Feather Touch Micro Focuser for Celestron C9.25 SCT

Starlight Instruments Feather Touch Micro Focuser for Celestron C9.25 SCT

by Starlight Instruments
SKU SI-FTM-C9.25
CA$504.00 - CA$504.00
CA$504.00
CA$504.00 - CA$504.00
CA$504.00
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  • Direct focuser upgrade for Celestron C9.25 SCT telescopes
  • Provides 10:1 dual-speed fine focus control
  • Eliminates image shift and "mirror flop" from the stock focuser
  • Two versions available to fit flat-back or CPC-style rear cells
  • Designed, machined, and assembled in the USA
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  • Description
  • FAQ
  • Specifications
  • In the Box
  • Downloads
  • Warranty

  • Starlight Instruments Feather Touch Micro Focuser for Celestron C9.25 SCT

    The Starlight Instruments Feather Touch Micro Focuser replaces the stock single-speed knob on your Celestron C9.25 SCT with a dual-speed, 10:1 reduction mechanism for backlash-free control. This precision-machined unit eliminates the frustrating image shift inherent in the standard C9.25 focuser, allowing you to make critical fine adjustments at high magnification without losing your target.

    10:1 Fine-Focus Control for the Celestron C9.25 SCT

    The primary challenge with the stock focuser on any Schmidt-Cassegrain is "mirror flop"—a slight tilting of the primary mirror during focusing that causes the image to jump. The Feather Touch Micro Focuser solves this by installing a robust, planetary reduction assembly that provides exceptionally smooth and precise control. The 10:1 fine-focus ratio allows for minute adjustments, which is essential for achieving perfect focus when imaging planets or splitting tight double stars.

    Crafted from hardened stainless steel and anodized aluminum, this focuser is built for a lifetime of use. It transforms the C9.25 from a good instrument into a great one by removing its single biggest mechanical limitation, enabling you to take full advantage of the telescope's optical potential.

    Compatibility Check: 2 Versions for Flat-Back and CPC C9.25 Telescopes

    Before ordering, you must identify which rear cell your Celestron C9.25 telescope has, as Starlight Instruments makes two different versions of this micro focuser to ensure a perfect fit. This is a critical step; ordering the incorrect version will result in an incompatible part.

    • Standard "C" Version: If the rear cell of your telescope is a completely flat surface around the focusing knob, you need the standard version of the focuser.
    • "CPC" Version: If your telescope's rear cell has a distinct triangular pattern cast into the metal, you need the CPC version. This is common on newer and CPC-series telescopes.

  • What is the main benefit of installing the Feather Touch Micro Focuser on my C9.25?

    The primary benefit is the elimination of image shift, also known as "mirror flop." The stock focuser can cause the image to jump when you change focus direction, making fine adjustments difficult. The Feather Touch's 10:1 dual-speed mechanism provides smooth, precise control, allowing you to nail critical focus without losing the object in the eyepiece.

    How does the Feather Touch Micro Focuser help when imaging Jupiter with a C9.25 SCT?

    When imaging Jupiter at high magnification, achieving perfect focus is the difference between seeing cloud bands and a soft blur. The Feather Touch Micro Focuser for the C9.25 allows you to make tiny, repeatable adjustments with its fine-focus knob, ensuring you can precisely focus the image on your camera sensor without the image shifting out of the small field of view.

    Is the Feather Touch Micro Focuser difficult to install on a C9.25?

    No, installation is straightforward and can typically be completed in a few minutes with basic hand tools. The micro focuser is designed as a direct replacement for the factory knob. Starlight Instruments provides detailed instructions to guide you through the process.

    How do I know if I need the standard "C" or "CPC" version for my Celestron C9.25?

    You must inspect the rear cell of your telescope.

    • If the back is flat, order the standard "C" version.
    • If the back has a triangular pattern molded into it, order the "CPC" version.
    Choosing the correct version is essential for the focuser to fit your C9.25.

    Will this Feather Touch focuser improve visual observing of double stars like Albireo in my C9.25?

    Absolutely. Splitting close double stars like Albireo (Beta Cygni) requires precise focus. The smooth, zero-shift focusing of the Feather Touch allows you to easily snap the two components into sharp, distinct points of light, something that can be very frustrating with the coarse control and image shift of the standard C9.25 focuser.

    Does this Feather Touch Micro Focuser replace the entire back of the telescope?

    No, this is a micro focuser, which means it only replaces the external focusing knob assembly on your Celestron C9.25. It upgrades the mechanism you touch, but it does not replace the entire focuser or the internal mirror-movement mechanism.

  • Compatibility Celestron C-9.25inch Schmidt-Cassegrain Telescopes
    Country of Origin USA (designed, machined and assembled)

    • Feather Touch Micro Focuser for Celestron C9.25 SCT

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  • Starlight Instruments 2-Year Warranty