Linhof Technika to Linhof Kardan 162x162 lens board adapter - 3d print – Custom Camera Building
Graflex Crown or Speed Graphic lens board - COPAL, COMPUR, M39 LTM, Cu – Custom Camera Building
Sinar lens board - COPAL, COMPUR, M39 LTM, Custom Sizes – Custom Camera Building
Amazon.com: Lens Board OV5647 Sensor for Raspberry Pi Camera, Arducam Adjustable and Interchangeable Lens M12 Module, Focus and Angle Enhancement for Raspberry Pi 4/3/3 B+ : Electronics