Re: [APML]: Lumicon Minus Violet Filters

[Robert Reeves <rreeves@connecti.com>]

At 05:51 PM 2/9/98 +0000, you wrote:
>
>Hi all,
>
>I heard that Lumicon doesn't sell Minus Violet filters anymore.  Does
>anyone know if there's another source for this filters ?  Thanks ! 
>-- 
>Geert Vandenbulcke
>Oostduinkerke, Belgium.
>

I haven't heard that.... but that does not mean it isn't true either.

A substitute for color film is a light yellow 2B or 2E filter while B&W can
use a deeper yellow #8, 12, or 15 filter.

Just make sure the transmission is high.  Some yellow filters pass on about
30% of the wavelengths they do pass.  I used to use a #48 yellow and was
unhappy with the results.  Then I checked the transmission and found that
was probably the worst yellow filter I could have chosen.



Robert Reeves                Home page http://www.connecti.com/~rreeves
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