Archived posting to the Leica Users Group, 2004/08/01
[Author Prev] [Author Next] [Thread Prev] [Thread Next] [Author Index] [Topic Index] [Home] [Search]The purple is the anti-halation layer washing out. I get a little in the fix, and a lot in the first two washes. Don't worry, it is normal with modern emulsions. Do however take a really good look at the negatives. For the shadow detail if you can see something in cross light on the negative that you can not see looking directly through the negative you still have enough information to get detail in your shadows with Tmax film. Take a good look at the highlights as well; you want to see some detail up to the specular highlights. With a Jobo, some of your calibration will be different than with normal dip and dunk. Obviously, if the whole negative is a little thin you will increase development time and contra wise if the negatives are overall a little thick. However, if say the shadows are fine but you are missing the highlights then decrease your dilution say 10% if it is close and 20% if it is a pretty flat negative. Likewise, if your negatives have more contrast than you want but you have good shadow detail then increase your dilution in the same manner. Continuous agitation requires a slightly different thought pattern as there is no such think as local exhaustion. Sexton uses a JOBO and with Tmax 100 and Tmax developer he is down to 1:7 for a normal contrast scene. 0.02 Don dorysrus@mindspring.com -----Original Message----- From: lug-bounces+dorysrus=mindspring.com@leica-users.org [mailto:lug-bounces+dorysrus=mindspring.com@leica-users.org] On Behalf Of Brian Reid Sent: Sunday, August 01, 2004 2:40 PM To: Leica Users Group Subject: Re: [Leica] Attack of the purple chemistry: JOBO, T-MAX, and XTOL I always get purple out of my hypo clearing bath, which is the last actual chemical. > The results appear to be okay (I was using 1:1 XTOL and the Kodak > recommended times as a starting point) but the effluent chemistry was > a most definite PURPLE. Was the chemistry bad? I've had batches of > Tri-X that resulted in purple chemistry but not THIS purple. _______________________________________________ Leica Users Group. See http://leica-users.org/mailman/listinfo/lug for more information