Digital BW, The Print

Thanks Carl, very much!  I can hardly wait to try this.

Jerry


> 
> This test image was shot at ISO 100, RAW mode, mirror lock-up enabled, long
> exposure noise reduction ON, manual exposure mode, 3 sec at f/11.  The
> filter was a Hoya R72 (Wratten 89B) which is a deep red filter that leaks a
> little visible light as well as passing all of the near infrared.  The
> autoleveled RGB image shows this mixture of visible and infrared light.  I
> either convert to greyscale using the lightness channel in LAB mode or use
> the channel mixer.
> 
> Carl
>