Dan Sandin’s Image Processor
One of the very first video synths purposely built to work with and inspired by 500 series format moog modular synthesizers was Dan Sandin’s image processor. There is wonderful source material of both the output of the machine as well as of Dan Sandin explaining how the Image Processor (aka I.P.) works. Not only historically significant in the history of video art and video synthesizers, Sandin himself is quite an interesting character who would typically wear pope and viking helmets during shows/interviews. As of writing this, University of chicago as well as Signal Culture have working Sandin Image Processors and Dan Sandin has recently given talks on VFX and the history of the IP.