Re: HIE with Bronica 35mm wide back

[Cameron Shaw <cameron@xxxxxxxxxxxxx>]

> From: Benjamin Loo <bennkloo@xxxxxxxxxxxxxxxxxxxx>

> Hi all list members,
> 
> I encountered some problems with my Bronica 35mm wide back when using 
Kodak
> HIE. I can't figure out what's the cause, hope someone can explain these.
> I shot a few rolls of HIE with my Bronica SQa 35mm wide back a few year
> back, the negative show, a) two round spots on every frame at the some
> position, I think this is due to the screw holes on the pressure plate. b)
> very faint vertical strips from top down between the sprocket holes,
> gradually fade off toward the centre and it only show in the picture area.
- ------------------------------------------------------

Hi,	
	The two round spots on every frame are caused through reflected 
infrared from the screw holes, re-exposing the film (these can be carefully filled 
in with black sealing wax), however as for the vertical stripes I have 
experienced the same problem! It was the first roll through this back so I will be 
 doing some tests.
 Up to now I have been rewinding HIE down the centre of 120 film backing paper 
and exposing with a Pentax 6*7 with excellent results. But wanting to keep a 
similar panoramic format and finding it a lot of trouble re-winding the film, I tried 
a Bronica 135Wide back. I thought it might be uneven developement, but I also 
used the same processing and agitation as before! #25 filter and Rodinal was 
used. Could it be stress marks from the flexing of the film roud the verry small 
diameter radius rollers, or perhaps some faint light leak somewhere , I have yet 
to find out. . . .
So, if anyone knows the answer, please help!
 Best Regards,
Cameron Shaw




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