[pure-silver] Re: Kodachrome
----- Original Message ----- From: "Myron Gochnauer" <goch@xxxxxx> 
To: <pure-silver@xxxxxxxxxxxxx>
Sent: Saturday, February 23, 2008 6:37 PM
Subject: [pure-silver] Kodachrome
A simple search of the archives didn't turn up anything, although I seem to remember this being discussed in the past:
Can Kodachrome be developed to produce a usable monochrome image by means of any more-or-less ordinary b&w chemistry?
I have a few rolls of exposed 120 in the freezer (and a few unexposed ones as well). 

Myron
Yes, although I don't have details like developing time. Kodachrome consists of three black and white film layers and a yellow filter layer made of colloidal silver. Processing in a standard developer like D-76 should give you a negative. However, I don't know of any way of bleaching out the yellow filter layer without also bleaching out the image. 


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