https://www.dpreview.com/articles/1471104084/sonyrgbeccd https://www.dpreview.com/articles/1471104084/sonyrgbeccd Alternatively take photos with a normal camer

https://www.dpreview.com/articles/1471104084/sonyrgbeccd https://www.dpreview.com/articles/1471104084/sonyrgbeccd Alternatively take photos with a normal camera and then with the same camera with a coloured filter. Choose the filter so that it only partially interferes with each colour of sensor (magenta should work well). Then the two images have six independent colour channels between them.