Re: Darkloading

["Willem-Jan Markerink" <w.j.markerink@xxxxx>]

On  9 Aug 96 at 14:49, eml@xxxxxxxxx wrote:

> A suggestion regatrding fogging.  As I seem to remember, the Kodak
> IR filmds, unlike Konica and Ilford, are NOT sensitized to green light.
> If this is so, it may be possible top load the film under a dim 
> green panchromatic safelight.  I'm not at all sure of this, and long
> ago threw out my Kodak IR handbook.  But I seem to remember that the
> film has a "blind spot" in the green due to lack of any sensitizer dye
> sensitive in that range.  Might be worth a call to Kodak?

Nope, only the Konica has a real blind spot in the green; the Kodak
shows a rather stead line across the spectrum (HIE and IE share
almost the same spectral sensitivity btw).

However, the felt trap only leaks IR, and fluorescent light shows
almost no emission in the IR spectrum, therefor loading under a dim
fluorescent light (indirect light) is possible. 

The best field solution would be a darkloading bag that has a few 
spectral leaks in the visible spectrum, but not in IR....
A pity that all thin and flexible stuff does the opposite, or blocks 
all light....

--
Bye,

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The difference 
between men and boys
is the price of their toys

<w.j.markerink@xxxxx>
[note: 'a-one' & 'en-el'!]

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Topic No. 3