When viewing thru a flourite such as the FS-102 which
corrects for the color Green, Blue and Red, how come
the Violet blur can't be seen as if invisible? Only triplets
such as the AP, TMB, etc. corrects for Violet too but
not in the FS-102 or FC series yet the Violet fringe
that is supposed to be there can't be seen. However,
when we look at a person with a violet shirt, we can
see it, so what's the difference in the uncorrected
violet blur color of the doublets and the shirt. Both
should register violet. Even after consulting many sites
on vision and color. The explanation still eludes me.
Bottomline is, since my FC-60 only corrects for Green,
Blue and Red. I should violet fringe in any object with
contrasting outlines, yet it's not there. Is it because my
eyes can't detect it thru some unknown mechanism
and can I see the violet blur with filter (what filter?).

optidud