4 ms·
Interesting. Is there a source for that? Never heard before about this age-related effect.
by Qem 4y ago
Interesting. Is there a source for that? Never heard before about this age-related effect.
- mncharity 4y agoLens transmission of blue (say <450 or <500 nm) declines with age - looks vaguely like 2% per year ages 20 to 60.[1] Thus reduced blue-yellow contrast perception in elderly. I don't know of any age-related change in red perception... perhaps those colors were off? [1] "Fundamental Chromaticity Diagram with Physiological Axes - Part 1" (I'm unclear on CIE copyright, so no link, sorry), section 5.6.
- fooker 4y agoLet me try to find some sources, this is so widely known and accepted in the photography (specifically astrophotography I guess) community that I have never bothered to look for sources. It matches my (and a bunch of others’) experience though, for what it’s worth.