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Purple Negatives???

Landon Christensen , Nov 01, 2009; 11:17 p.m.

Hello Everyone,
I am brand new to the community here at Photo Net, I thought I might get some help if I register and post some questions. This seems like a friendly bunch of photographers.
Anyways....
Today was my first shot at film developing. I was not very thrilled when I came to see that my negatives were tinted purple? Does anyone have any ideas on what to do/not to do? Here are the chemicals and film I am using and the times I use them for.
----------------------------------------------------
I use Ilford HP5, 400 ISO
Kodak D-76, for 9 minutes with 5 second agitation at 30 sec. intervals.
Kodak Indicating Stop Bath, for 1 minute constant agitation.
Kodak Fixer, for 5 1/2 minutes with 5 second agitation at 30 sec. intervals.
Water Rinse, for 5 minute presure wash.
----------------------------------------------------
Does anybody have suggestions?

Thanks,
Landon

Responses


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Russ Rosener , Nov 01, 2009; 11:19 p.m.

You may need to fix the film longer or wash it longer.

Greg Thomas , Nov 01, 2009; 11:28 p.m.

Here's a great thread on apug about tints.

I generally don't care about slight tints to any of my negs as long as they're fixed properly.

Franklin Polk , Nov 01, 2009; 11:54 p.m.

Either fix longer (as suggested), or use hypo-clear, which I've found to remove most of the dye.

Lex Jenkins , Nov 02, 2009; 01:12 a.m.

It's all cussed and discussed in the archives here .

Michael Axel , Nov 02, 2009; 03:36 a.m.

I think the link above is pointing back to this thread. Anyway, a very simple solution is to pre-wash the negs for a 3-5 min in water, agitating as normal, then discarding before the developer step. Make sure the water temp is about 68 degrees. Also, I have not found the tint to have any real affect on the printing of the negatives.

Chris Waller , Nov 02, 2009; 07:29 a.m.

I recommend two-bath fixing and the Ilford Method of washing. Here's a link which may prove useful:
Two-bath fixing.
A trace of purple might remain but it is insignificant and fades with the passge of time.

Howard Vrankin , Nov 02, 2009; 07:47 a.m.

Landon: the purple color is residual anti-halation dye. It's nothing to be too concerned about. However, it does bring into question your fixing and washing, as others have mentioned. Fresh fixer with proper time and agitation, and plenty of water wash might clear the dye more completely.

Marco Taje , Nov 02, 2009; 09:37 a.m.

It happened to me in different amounts. I found the problem to be fixing, in every case. Try fixing a bit longer. For example, I use Rollei RXA: time listed on the booklet is 3-5 mins at dilution 1+4. I use 6-7 minutes. If the fixer isn't fresh, you might want to fix even longer.
Never had any more casts.

Tom Scott , Nov 02, 2009; 10:36 a.m.

This is very interesting. I have notice "purple negatives" with both Ilford Delta 100 and Kodak T-Max 400. I assumed it was due to use of a different celluloid film base. It seems kind of odd that it would be residual dyes and be so uniform in color. Oh well, live and learn I quess. I have not seen any problems when scanning my purple negatives.


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