david_c3 Posted August 8, 2007 Share Posted August 8, 2007 Until now, I use the Massive Development Chart times for B dilution regarding my 400 speed films (Fuji Neopan and Kodak Tri X). I've read on this forum that HC110 using H dilution may be better. What characteristics would improve if I use the higher dilution? I know the times would be longer and would be easier to work with since they are too short with B dilution. Also, there are no times in the MDC for H dilution. Does anyone have starting times for H diultion in regards to Fuji Neopan 400 and Tri X shot at box speed? Thanks in advance. Link to comment Share on other sites More sharing options...
evan_goulet Posted August 8, 2007 Share Posted August 8, 2007 Personally, I haven't seen too much difference in terms of image quality between the two, but I have used it to lengthen development times of Tri-X at pulled speeds. I am sure others will tell you that you can hold the highlights a bit more with the increased dilution. A good starting point is to double your times for dilution B. Link to comment Share on other sites More sharing options...
john_gleason1 Posted August 8, 2007 Share Posted August 8, 2007 Here's a start: http://www.digitaltruth.com/techdata/hc-110-h.php and here (for Neopan): http://www.rangefinderforum.com/forums/archive/index.php/t-8131.html Link to comment Share on other sites More sharing options...
chris_markiewicz Posted August 8, 2007 Share Posted August 8, 2007 hello. i have been using hc-110 dilution h almost exclusively so far. for tri-x at 400, i do 11 minutes at 68 degrees (distilled water). inversions for first 30 seconds or so, then 3 every 2 minutes (approximately - i'm not very strict with my inversions). Link to comment Share on other sites More sharing options...
david_c3 Posted August 8, 2007 Author Share Posted August 8, 2007 Thanks for the responses. I was thinking that I should lessen my agitations as well. As the insructions state invert for 10 seconds initially, then every 30 seconds for 5 seconds, this may be too much. Would it be better to agitate every minute or two like Chris' suggestion to not lose detail in the highlights? Link to comment Share on other sites More sharing options...
chris_markiewicz Posted August 8, 2007 Share Posted August 8, 2007 One other note - I use the exact same time for 125px - so I develop both in the same tank. (I know that wasn't part of your question, but thought i'd add it in case you want to try a roll). Also, once you try whatever times you decide on, please post your results in a new thread. I'm always looking for new info. thanks chris Link to comment Share on other sites More sharing options...
peter_schauss1 Posted August 8, 2007 Share Posted August 8, 2007 The primary reason for using dilution H is to provide more uniform development by lengthening the development time. I also use 11 minutes at 68 degrees C for Tri-X, Plus-X, and HP5+. Link to comment Share on other sites More sharing options...
john_elder1 Posted August 8, 2007 Share Posted August 8, 2007 I use Hc110 at dilution of 1:50 to develop HP5+(ei400)35mm format. Distilled water, 5 reel paterson tank(takes 50 ounces to fill tank)at 68 degrees. Agitation as recommended: 5 sec every 30 seconds for 7 +1/2 minutes. Net zone 1 density of .08, Net zone 5 density of .70, and net density of Zone 8 is 1.25. I believe this dilution is referred to as dilution E. Link to comment Share on other sites More sharing options...
bobmichaels Posted August 8, 2007 Share Posted August 8, 2007 I use a lot of HC 110 Dil. H with Neopan 400. I see no real change in Dil B and Dil H negs, just a less critical developing time. As others have said, doubling the dilution B times is a very good starting point. I've settled on 9 minutes with Neopan 400 shot at e.i. 250-320. 10 minutes is probably good for e.i. 400. Not much difference between 10 and 11 minutes. Any of the above will get you good printable / scannable negs that you can begin to fine tweak as you go along. Link to comment Share on other sites More sharing options...
john_gleason1 Posted August 8, 2007 Share Posted August 8, 2007 "I also use 11 minutes at 68 degrees C for Tri-X, Plus-X, and HP5+." <p> That would be 68 degrees <i>F</i>, presumably? Link to comment Share on other sites More sharing options...
davemoss Posted August 9, 2007 Share Posted August 9, 2007 but what about in roto tanks? i use the unicolor tank for 4 4x5 sheets. what is the minimum amount of developer needed at that dilution? Link to comment Share on other sites More sharing options...
chris_markiewicz Posted August 9, 2007 Share Posted August 9, 2007 yes, 68F. 68C is approx 150F - that wouldn't be fun... Link to comment Share on other sites More sharing options...
Recommended Posts
Create an account or sign in to comment
You need to be a member in order to leave a comment
Create an account
Sign up for a new account in our community. It's easy!
Register a new accountSign in
Already have an account? Sign in here.
Sign In Now