Re: Processing errors -- help

[George L Smyth <GLSmyth@xxxxxxx>]

Thomas H. Hogan wrote:
> 
> My HIE roll of negatives came out dark all over.
> 
> I can't figure out where I went wrong.
> 1) Can stainless steel tanks ever leak infrared light in through the
> metal lid?

No.

> 2) The light baffle should block the light right?

Yes.

> 3) It has some rust spots but it has worked many times before.

Toss it.

> 4) I usually load and unload my camera in a black film change bag.

All changing bags are not IR opaque.  Assuming that you did not load
your film in the bright sunlight and fall asleep during the procedure,
the effects you mention are too severe for this to be the complete
explanation.

> 5) Perhaps the camera has developed a light leak?

Perhaps.  How is your other film working.  If it is okay, then the IR
should be okay.

> 6) Can major over exposure of a few frames ruin a whole roll?

No.  At worst it will bleed over into the other images.
 
> Only two images are barely discernable in the over all blackness that
> extends all over the film.

I am assuming that the frames are dark, not the entire negative.  If the
entire negative material is dark then you have a leaking problem
somewhere that would be seen with other film.

How did you expose the film?  I expose HIE at EI250 metering through a
#25 filter.  How did you develop the film?  There are many
possibilities, but most problems would be seen with other films also.

george

-- 
 Handmade Photographic Images     
  http://www2.ari.net/glsmyth/

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