Re: Developing Color in B/W Reversal Chemistry

From: Cathy Rogers (email suppressed)
Date: Tue Feb 16 2010 - 00:40:17 PST


Hi Ed Thanks for that, all really useful and I can see that most definately points 1 and 2 could be where the problems lie. I'm going to try again and make the exposure time and first development time shorter. Many thanks. Cathy http://cathyrogers.blogspot.com ________________________________ From: Ed Inman <email suppressed> To: email suppressed Sent: Monday, 15 February, 2010 20:54:40 Subject: Re: Developing Color in B/W Reversal Chemistry Yes, it appears to be a B/W reversal kit that uses potassium permanganate "Blix" a/k/a Bleach. http://www.speedibrews.free-online.co.uk/reverser.pdf I'm surprised there is no sodium sulfite clearing bath used after bleaching. I would think the "Blix" would leave something of a purple stain, but perhaps not. At any rate, a finished print too light can be attributed to a variety of causes: 1. Film overexposed. 2. First development too long or temp. too hot. 3. Re-exposure after bleaching insufficient (you cannot overexpose at this point). 4. Second development too short or temp. too cold. hope this helps, Ed -----Original Message----- > >From: Cathy Rogers > >Sent: Feb 15, 2010 1:36 PM > >To: email suppressed > >Subject: Re: Developing Color in B/W Reversal Chemistry > > > > >As far as I'm aware the celer-reverser kit is b&w chemistry. > > Cathy >http://cathyrogers.blogspot.com > > > > > > ________________________________ From: Ken Paul Rosenthal <email suppressed> >To: email suppressed >Sent: Monday, > 15 February, 2010 18:09:24 >Subject: Developing Color in B/W Reversal Chemistry > > >>Has anyone had any experience of developing Plus-X 7265 (super 8 b&w reversal) with the celer-reverser kit? >Per the original question above; please note that one cannot develop b & w film in color chemistry because bleach in color processing removes the silver, leaving the color dye-based image behind. If the image is silver-based--as it is in b/w--then no image will be left. >Kenwww.crookedbeauty.com >www.kenpaulrosenthal.com > > > >________________________________ Hotmail: Powerful Free email with security by Microsoft. Get it now. >>__________________________________________________________________ >For info on FrameWorks, contact Pip Chodorov at <email suppressed>. > >>__________________________________________________________________ >For info on FrameWorks, contact Pip Chodorov at <email suppressed>. > __________________________________________________________________ For info on FrameWorks, contact Pip Chodorov at <email suppressed>.

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For info on FrameWorks, contact Pip Chodorov at <email suppressed>.