Re: DIY light source for 10X10" enlarger.

Nicholas O. Lindan wrote:
> Ilford MGIV paper is a 3-emulsion paper, the third emulsion
> sensitized for cyan.  For best control - especially at low
> contrast grades - the head would also have cyan LEDs.

I've never heard of cyan LEDs. Green and blue will look cyan to the
eye, but I have no idea if it will activate that layer, my guess is
not.

Geoff.


-- 
Geoffrey S. Mendelson, Jerusalem, Israel gsm@[EMAIL PROTECTED]
  N3OWJ/4X1GM