>From: Anders Nelson <anders.k.nel...@gmail.com> >Sent: Thursday, November 16, 2023 4:49 PM >To: General Discussion: On-Topic and Off-Topic Posts <cctalk@classiccmp.org> >Cc: dave.g4...@gmail.com >Subject: Re: [cctalk] Free to good home HP 7510a Photo Plotter - UK > >What an interesting device, I've never heard of such a thing. > >How does it realize full-spectrum color if it uses primary color wheels? Maybe >by varying exposure time of each color?
Well that’s what it says in the manual, but sure how it achieves this. The samples were taken by opening the shutter, running the demo and then closing the shutter but as you can see the sample palette comes out fine. I don't know if it varies the brightness or the plot speed.... >-- >Anders Nelson >http://www.andersknelson.com/ Dave
