Re: Horizon 202 / HIE- strange fogging problem

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

On 26 Aug 99 at 10:37, Keith Davison wrote:

> When I use Kodak HIE in my Horizon 202 I get a strange pattern of "fogging" 
> on the film. 
> The "fogging" appears as a stripe of very dark fog starting at the begining of 
> the film and running for about 6 Horizon frames, this stripe is located along 
> the bottom edge of the film (top edge in the camera), and is very dense near 
> the edge, fading to nothing just before the frame edge begins.  This stripe 
> also gradually fades in intensity as it runs along the film, disappearing, as I 
> have said, by Horizon frame 6.  This "fogging" is very puzzling, I could buy a 
> light leak in the Horizon, but why does it only affect the first six frames of 
> every film?  To my certain knowledge the last roll of HIE through the Horizon 
> was used in very bright sunlight for it's last ten frames, but no light leaks 
> appear on that section of the film.  HIE from the same batch, used in my 
> conventional 35mm bodies shows no fogging at all.  Colour negative film put 
> through the Horizon is also fog free.
> I am using a homemade 87C filter, the film is darkloaded, and I process in 
> Xtol 1+1. 
> This problem does not affect image quality at all, but I am curious as to its 
> cause, any ideas?

Quick & dirty guess: 
You are using a darkload bag that is not perfectly IR-proof....
While this might not show with other bodies, you are fiddling much 
longer with the 202 inside that bag (or inside a dark room that seems 
dark for those other bodies).

The fogging is very typical for darkload/darkremoval of film and 
light hitting the cannister....either visible or IR-only.

Btw, do you process it yourself?
If a shop handles the cannisters, even with the film leader
retracted inside, in daylight, the effect is almost the same.


--                 
Bye,

Willem-Jan Markerink


      The desire to understand 
is sometimes far less intelligent than
     the inability to understand


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