RE: Drum Processing of HSI?

[Theo Benson <TBenson@xxxxxxxxxxxxx>]

David:

I use Besseler drums for my 4x5 HIE, and found that they were light tight to
IR. By experimenting, I found that I should cut my development time by about
10% to allow for continuous agitation (but that was at 68F -- I use an ice
bath to lower the developer temp from tap water that is often 76F or
higher). I recommend cutting an exposed sheet of film into four strips, and
then processing each one for +/- 10% and +/- 20% to see what works the best
(and also confirm that the drums are light tight). I DO love the chemistry
savings that my drums give me!

Theo Benson

> -----Original Message-----
> From:	David N. Horn [SMTP:dh@xxxxxxxxxxxxx]
> Sent:	Monday, July 27, 1998 1:24 PM
> To:	infrared@xxxxx; dh@xxxxxxxxxxxxx
> Subject:	Drum Processing of HSI?
> 
> I would like to process Kodak 4 by 5 HSI film using a drum and D76. Can
> anyone suggest  a good development time?
> The drum is a UNI-color drum, and can take two sheets of 5 by 7 or four
> sheets of 4 by 5.
> To keep the film wet, I will have to keep it rolling continuously. I
> assume
> this will reduce the development time from the Kodak recommended
> 9.5 minites at 72 degrees F (my basement temperature).
> My main reason for using a drum is to reduce the amount of chemistry,
> from the 1.6 Litres my tank takes.
> Do I also have to worry about the Uni-color drum leaking IR?
> Any pointers apreciated!
> 
> Dave Horn
> 
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