EF / EF-S Lens Controller & Adapter for Astronomy Camera – Canon® Lens Compatible
The solution allows Canon EF and EF-S lenses to be used for astrophotography. In addition to mechanical mounting, it provides electronic control of lens focus and aperture via a USB port. Designed for compatibility with astronomical imaging software, the adapter enables users to control lens settings programmatically.
The solution allows Canon EF and EF-S lenses to be used for astrophotography. In addition to mechanical mounting, it provides electronic control of lens focus and aperture via a USB port. Designed for compatibility with astronomical imaging software, the adapter enables users to control lens settings programmatically.
The solution allows Canon EF and EF-S lenses to be used for astrophotography. In addition to mechanical mounting, it provides electronic control of lens focus and aperture via a USB port. Designed for compatibility with astronomical imaging software, the adapter enables users to control lens settings programmatically.
Product Highlights
EF/EF-S Lens Compatibility
Supports a wide range of Canon DSLR lenses, expanding lens options for astronomers.No External Focuser Needed
Uses the lens’s internal focus motor, eliminating the need for mechanical focusers..USB-Controlled Focus & Aperture
Electronic adjustment of focus and aperture via a standard USB connection — no manual handling required.
Software Integration
The adapter is designed to work with popular astrophotography software platforms via ASCOM / INDI compliant drivers.
Compact Design
Secure, low-profile mounting ensures stable alignment and minimal flex, maintaining optical quality.
Adapter variants
To support a wide range of cameras, the adapter is available in different versions, based on camera back focus:
| For Cameras with Back Focus | 17.5 mm | 12.5 mm | 6.5 mm |
|---|---|---|---|
| Mounting Interface: T-mount with | male thread | male thread | female thread |
| Compatible with Cameras such as the QHY®, ZWO® -> or any other camera with M42x0.75 mm thread and a similar back focus. |
QHY183 QHY294 |
ASI120 ASI178 ASI224 ASI290 ASI385 ASI462 ASI662 ASI664 ASI676 ASI678 ASI715 |
ASI174 ASI183 ASI294 ASI432 ASI482 ASI533 ASI585 ASI990 |
Filter Support
Each adapter variant can include two integrated holders for:
1.25” filter (standard threaded filter)
36 mm unmounted filter
This design allows direct filter installation inside the adapter, maintaining a compact optical path without external accessories.
Software Support
The adapter is designed for integration with ASCOM and INDI platforms. Software drivers are currently under development and will be released in a future update.
* Canon is a registered trademark of Canon Inc. This product is not manufactured by, endorsed by, or affiliated with Canon Inc.