HAYEAR 5MP USB Digital Microscope Camera USB Digital Eyepeice Lens Tpye C USB Video Camera for Sience Education Lab Reserch with Free Calibration Software: Amazon.co.uk: Business, Industry & Science
Get more accurate color with camera calibration : Digital Photography Review
DLR - Institute of Robotics and Mechatronics - DLR CalDe and DLR CalLab - The DLR Camera Calibration Toolbox - Software available