I usually get better contrast out of Rodinol, but I also use ilfotect-hc (hc110), D-76 1:1 On 3/29/08, Richard Knoppow <dickburk@xxxxxxxxxxxxx> wrote: > > At 09:55 AM 3/29/2008, you wrote: > >You know FP4 might be a good replacement for APX 100. I too found > >Delta 100 flat for my type of work. But I do not think that > >anything will replace the APX 100/Rodinal combination. Just my > >experience though. Ten years ago I used D-76 allot but left it > >because of getting blown out highlights. > > > Contrast is a matter of development. While there is a > characteristic contrast range of film due to the distribution of > crystal sensitivity in the emulsion this is usually not much > different from one to another pictorial films. One sees it when > comparing pictorial film to commercial or lith film. If the contrast > is too low increase development. Of course, exposure must be adjusted > also. You should be able to get the same contrast index with any > common pictorial film. The shape of the characteristic curve will > vary among films and will affect the tone rendition to some extent > but the only current film with a curve much different than others is > Kodak Tri-X Professional film, the one with ISO-320 speed. It has a > curve with contrast that increases continously with density. > I don't know about blown out highlights with D-76. I use D-76 > 1:1 for T-Max films and do not have this problem. I also use Rodinal, > mostly for sheet film, and have never seen a significant difference > in tone rendition between the two. Tabular grain films like T-Max and > Delta tend to increase contrast faster with development time than > cubical grain films so its possible to get very high highlight > densities if one is not very careful. Rodinal at very high dilutions > will produce some "compensation" that is, the creation of a shoulder, > or low contrast area, for the highlights. But, since "blown out" > highlights means no detail in them, this is probably even worse than > normal contrast and high densities because burning in will not help. > I've used a fair amount of APX 100, mostly as sheet film, its > very nice stuff, I liked especially for portrait work. > > > > -- > Richard Knoppow > Los Angeles, CA, USA > dickburk@xxxxxxxxxxxxx > > > > ============================================================================================================= > To unsubscribe from this list, go to www.freelists.org and logon to your > account (the same e-mail address and password you set-up when you > subscribed,) and unsubscribe from there. > -- I am a leaf on the wind! Watch how I soar. -Hoban "Wash" Washburn (serenity movie) ----------------------------------------------------------------------- http://mcpeak.jason.googlepages.com/home