Canon EF Lens Controller
USB Powered with Aperture and Focus Control.
The EF Lens Controller (EFLC) is a USB powered lens controller compatible with Canon EF series lenses.
The CLC-USB controller allows serial control of both focus and aperture and is available in
optical modules for the illunis EMC family of cameras.
The EF Lens Controller is available for EMC series of cameras, M58 Mount, C-Mount, and as a OEM “Core” puck version that can be adapted to other mounting types. Licensing and OEM versions are also available.
Note: Given the lack of standardization as to where the thread is cut on the camera’s body, M58 and C-Mount orientation to the camera body cannot be fully controlled. It is possible to adjust controller orientation by 45 degree increments via remounting the core puck to the controller base. The lack of fine controller may impact the image area of certain lenses that feature light shields towards the rear of the lens which restrict the image area from a circular to a square format.
Product Highlights
- Second Generation design with 32bit microprocessor
- Official EF protocol, not reverse engineered
- Compatible with Canon EF, EF-S Lenses
- Available in EMC, M58, C-Mount, and OEM core puck mount options
- Custom mounts easily created via adapters for core puck version
- Adjustable controller orientation for threaded mount types (M58 and C-Mount) via remounting core puck to controller base.
- Robust CNC machined design
- Save and restore lens control, aperture and focus positions
- Aperture detection and control in 1/8 F-Stop increments
- Image stabilization detection and activation
- Focus detection and control at lens encoder increments
- Low power USB 2.0 device that communicates through a virtual COM port
- Internal EEPROM available to the user
- Field-updatable firmware and Built In Test (BIT)
- Human-readable command set
- Sample Windows lens control application and SDK
- OEM versions and Development Kit available