25 Jun
2019
25 Jun
'19
12:44 a.m.
On Jun 22, 2019, at 10:31 AM, Robin Myers via colorsync-users <colorsync-users@lists.apple.com> wrote:
Perfect reflecting diffuser 100 Fluorilon FWS-99 2009 99.9 Spectralon SCS-99 99.7 Kodak Gray Card 1977 (3 specimen average) 95.0 ColorChecker Passport 2013-12 Neutral 9.5 52.2 ColorChecker Passport 2013-12 Neutral 5.0 95.2
A couple of layers of heavy weight Tyvec is pretty good and relatively cheap, at 98.5 Graeme Gill.