Re: [Leica] Y2 Filter humbug!

[Mark Rabiner <mark@rabiner.cncoffice.com>]

Ken Iisaka wrote:
> 
> > red is the opposite of green, not blue, not cyan
> 
> Not really.  In the additive system, the three primary colours consist of
> red, blue and green.  A red filter cuts both blue and green, leaving red
> only.  An orange filter cuts blue, and part of the green spectrum.  A yellow
> filter only cuts blue.  Green filter cuts both blue and red.
> 
> Most filter manufacturers publish the spectral trasmission curve.  That can
> explain all the comments we've been making.

Thanks for the clarification Ken! I'm not separating out my additive from my
subtractive color theories it looks like.

mark rabiner