Sodium safelight for RA-4 printing in trays?

[JoJo]

I use IR in my darkroom since some years. I modified some LCD TV-glasses (Zeiss Cinemizer) by mounting a B/W-camera ($20) to it and connect the signals of the camera to the input of the video glasses.

(there was a url link here which no longer exists)

Joachim

 

[Ed Bray]

Your head looks a bit pale in that picture.

 

[AgX]

Isn't that typical for IR-photography...

 

[JoJo]

Isn't that typical for IR-photography...

But one funny thing when working under IR in the darkroom is, that color film appears completely transparent.
The dyes are transparent under IR. This is how digital scanners find dust and scratches on negatives or slides.
So when making some silvermasks or duplicates from slides for example, you cannot see the image on the film strip. I have to mark the image on the original with a permanent marker at the edges to fit it to the unexposed material below.
Some plastics also become transparent, but unfortunately not my Jobo tank. Would be interesting to see what happens inside during processing..

Joachim