Interesting...you think baking powder could be used as a sub?
karl shah-jenner wrote:
Trevor Cunningham:
Hey gang (particularly Andy),
I'm buying studio gear this summer to begin working with small object
and still life images. For my continued IR experiments, I want to
find a background material that will minimize the reflection of IR
waves giving me a deep space black background. I'm buying black felt
as it is, but I'm not convinced it will do the trick with IR. Any
thoughts/experience?
water!
but seriously, it's really a case of suck it and see with IR.. I have
some black velvet that glows like it was a light *source* when
photographing with IR .. each material has its own properties
you might try soaking some cloth in an alum solution and see how that
goes. I understand aside from making it fireproof, it has some IR
properties that the military take advantage of regarding night vision
and thermal imaging
haven experimented myself, but if you've some film/paper hardener
lying about from the darkroom days, it wouldn't be a big thing to try
karl
