Hi all,
Just wondering how many people in
IIS land suffer from it?
I can remember at school having to get the teachers to not use crimson chalk on a dark green blackboard. It was shimmering.
Traffic lights are ok.
Red navigation lights at night are tricky.
The 90m marker on a golf course(red), impossible!

And viewing subtle shades of red in Astrophotography is also tricky.
How have you been effected by it? Thoughts appreciated.