Re: taking IR pictures in the dark

["Thomas \"Hank\" Hogan" <flzhgn@xxxxxxxxxxxxx>]

Once I burned up a Wratten 87C infrared gel filter -- I put it inside a 
microscope illuminator and fried it!  There was nowhere for the heat
generated from the absorption of visible light to go.

On a flash unit that I use for photographing crepuscular animals by
infrared
flash, I've glued the 87 C gel to the glass of flash unit and reinforced
the
edges with multiple layers of black plastic electrician's tape.  Another
filter
I've used is made of fragments of 87C gels taped together overlapping
with
Scotch brand tape over a piece of unexposed E6 leader.  I use this one
on
an Olympus T32 flash.  I've had to use all kinds of things to prevent
light
leaks.

I am intrigued by the 87C polyester filters mentioned by W.J.

Hank Hogan

Rolland Rainbow Elliott wrote:
> 
> I'm going to try to take some IR pictures in very low light to total darkness
> situations, and need some advice.
> 
> I bought a Kodak 87C Wratten Gel filter and covered the flash head of my
> SB-26 flash with it.  I pushed in the red "test flash" button to see how much
> visible light I could see.  However when I did this the gel litterally popped
> off the flash head, and was slightly burned.It wasn't burned all the way
> through, but I bet another ten or so flashes would destroy the filter.
> The gel is now very wavy and ruined.
> 
>
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