Vaugh for you with the Hp5+ what is the best developper to obtain a best negatif for the carbon printig Iso ? Deveper choise ? Dilution ? Temperature degre celcius ? Time ? Very thank you for your help and experience on argentic negative and carbon printing with this. Philippe
Sorry, but I have not yet gotten a good neg for carbon from HP5+. While I suggested D-19 to others, the suggestion was based on my failure with my usual 'high-energy' developer (Ilford Universal PQ), and the opinion/testing of others. I just decided that I won't use HP5+, as it is not the best choice for me.
But if I were to try HP5+ again, and did not have D-19 to try, I would try straight Dektol, 68F for 8 minutes for a HP5+ negative of a scene that has a range of at least 7 stops of light in it (detailed shadows placed on Zone II to III). I would not bother exposing the film with a scene brightness range of 5 stops or less.
At least with LF landscape, a bad day of photography can still be a good day of exercise.
As I posted on page one... with a print, D-19 works very well with HP5+ and carbon printing. I use a dilution of 1:3 as if used straight is very powerful and very short development time. I develop at 20C. I don't have the development times on the top of my head, but if you want, I can post my "normal" time later today.
For a DR of about 1.90, normal development time is 5:00. D-19 1:3, 20C.
Please note that this time is for continuous agitation in a tube. For tray work, you will have to extend the time somewhat.
That is correct. I have a lot of chemicals in my darkroom so I mix D-19 from scratch. Keep the stock developer in a bottle with no air space. Small water bottles with air squeezed out works wel for me.