Re: Konica IR versus Kodak HIE

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

On  7 Sep 96 at 2:13, eml@xxxxxxxxx wrote:

> The first film I ever bulk-loaded was Eastman #400 Survewillence Film,
> commonly known as HIE, back in 1968.  I have used it a number of
> times since, until I discovered the Konica lots of years ago and went
> in on buying a case of it from Japan.  The HIE bulk-loading was no
> problem, and camera-loading was not a problem if you could find some
> heavily-shadowed area and work quickly, losding maybe the first 5 
> frames at worst.  

Can you remember what you paid for the bulk roll of #400 in those 
days? How long for how much?
 

> I contend that Kodak should be producing THAT, and
> distributing it to the public.  Or at the very least, putting a 
> gelatin antihalation coating on HIE wouldn't kill them.

But it would definately kill sales in the 'art department'....and it
seems as if gelatine isn't suitable for IR blocking either....
Would be interesting to know the sales split between 'art', science and 
military, for both HIE and IE....

Anyway, whatever they improve in this regard, please let them add it
to the program, and not *replace* HIE! 


> I HAVE used the product.  I hate grungy, blobby grain.  I hate
> halation.  They don't fit my photography.  If they fit your
> perception and style, well fine! Go to it! I will not criticize
> what you choose to photograph or how, and certainly have no
> interest in belittling you.  I expect the sdame in return.

FWIW, I am still pondering on the halation phenomena....if
reflection off the pressure plate is the main (?only?) cause, and
killing it within the film with gelatine isn't possible....what
about applying an IR absorbing layer to the pressure plate?
On further thought, I am now pondering about using a very dark IR 
filter to achieve that. Not a #87C, but a much darker color. I have 
some gelatine samples, including a few very dark ones (presumably 
#87A equivalents, with a 50% transmission @ 1005nm). Being a 
gelatine, they will be vulnerable to scratching, but I could 
protect/attach it with a sheet of clear, self adhesive plastic. 
To make the outcome of this experiment even more interesting, I also 
would need to run a film with a maximum reflective surface, ie 
aluminium foil taped with the same plastic.

Mmm....any thoughts on this?
Am I reinventing the wheel with this experiment? 
Anyone done this, or read about it?
How much sense does it make?








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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. 7