16 Nov
2023
16 Nov
'23
6:27 p.m.
From: Anders Nelson <anders.k.nelson(a)gmail.com>
Sent: Thursday, November 16, 2023 4:49 PM
To: General Discussion: On-Topic and Off-Topic Posts <cctalk(a)classiccmp.org>
Cc: dave.g4ugm(a)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