Celestron 94155-A Focus Motor
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The Celestron 94155-A Focus Motor is an electronic focuser designed to attach directly to Schmidt-Cassegrain, EdgeHD, and RASA telescopes, enabling precise motorized focusing without touching the scope manually. It integrates with Celestron hand controllers and compatible third-party software, making it a natural upgrade for anyone doing astrophotography who wants to eliminate focus drift and mirror shift. Overall it is a well-built, purpose-made accessory that delivers reliable electronic focusing with minimal fuss when used within the Celestron ecosystem.
Key Features & Specs
| Compatibility | Designed for Celestron Schmidt-Cassegrain, EdgeHD, and RASA telescopes with the standard rear-cell focus knob |
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| Control Options | Works with Celestron hand controllers, focuser controller, and third-party software via USB or AUX port integration |
| Motor Type | DC motor with encoder feedback for smooth, repeatable incremental focusing steps |
| Installation | Tool-free clip-on mounting system that attaches directly to the existing focus knob shaft in minutes |
| Power | Powered through the telescope's AUX port, requiring no separate battery pack or power supply |
| Software Support | Compatible with CPWI, Celestron PWI Focuser Controller, and ASCOM-based astrophotography applications |
| Build | Compact black anodized aluminum housing designed to add minimal weight and bulk to the telescope |
Best for: Celestron telescope owners who shoot astrophotography and want a plug-and-play electronic focuser that integrates cleanly with their existing Celestron mount and software without requiring third-party adapters or modification.