Electronic Autofocus Motor for S Mount Lenses M12 Lenses | Ultrasonic Linear Actuator

The CLA322-AFM is a motorized M12 lens mount that adds autofocus to standard M12, or S-mount, lenses. The ultrasonic linear actuator gives you 6.5mm of stroke and enough force to move lenses up to 5g, which covers most Commonlands M12 optics. You thread in the lens, connect the USB adapter board, and you have programmable focus control without building a custom mechanism first.

The mount uses 22mm hole spacing, so it lines up with common board camera patterns. The detachable USB adapter board makes bench work easier because you can send focus commands from a host computer while you check depth of field and repeatability. In production, the motor connects directly to your controller, so the prototype path does not lock you into a lab-only setup.

The CLA322 works well when working distance changes during use. That is why it makes sense for logistics scanning, drone payloads, and inspection stations that do not hold one fixed focal plane. If you need faster response and can live with shorter travel, the CLA321 voice coil motor is the better comparison point.

Commonlands can customize the assembly for heavier lenses and OEM integration. You should send engineering@commonlands.com your lens weight, required stroke, and volume if the standard unit is close but not quite enough.

Commonlands ships in-stock accessories same day from San Diego before 12 PM PST. Volume pricing is available for production quantities.