[pure-silver] Re: Shoulder and highlight
- From: DarkroomMagic <info@xxxxxxxxxxxxxxxx>
- To: PureSilverNew <pure-silver@xxxxxxxxxxxxx>
- Date: Fri, 31 Dec 2004 21:21:24 +0100
Keep in mind, I have no experience with Fuji Acros but know Tmax films well
and use only D76, ID-11 and Rodinal film developers.
Many photographers like the 'rolling-off' highlights, I don't. The reason is
your experience with TriX and D76 at 1+3. A flat shoulder means that fairly
large exposure differences create fairly small density differences.
Consequently, these highlight differences are not showing up all that well,
they don't separate well. I prefer a steep shoulder or no shoulder at all up
to about 1.5 relative log density (about Zone IX). Beyond that, I don't
care, because I never use that portion of the characteristic curve for my
photography anyway. My useful negative density range is from 0.17 (Zone I.5)
to 1.37 (Zone VIII.5).
I use D76 at 1+1 and have no trouble. Could it be that your dilution of 1+3
starves the highlights of TriX, flattening the shoulder in the process? Try
D76 at 1+1 and see if it makes a difference. I'm intending to do a new TriX
film calibration for the Jobo within the next two weeks in D76 1+1, because
I rediscovered it recently for 4x5. I could tell you then.
Regards
Ralph W. Lambrecht
On 12/31/04 6:49 PM, "Bob Randall" <bob@xxxxxxxxxxxxxx> wrote:
> I currently use 2 films when shooting 6X7. Fuji Acros and TriX 320. I'm
> disappointed with the highlight separation that I get with TriX, but I like
> the pictorial feel of the film. I like the separation of the HL in Acros,
> but the film has a mechanical look to it similar to the difference between
> video, and motion film stock. I've been testing different film and developer
> combinations in search of the separation I want. I have this question. How
> does shoulder relate to separation of tone? Tmax film curves go straight
> well beyond 2.0 density. TriX slopes off flat early. Am I looking for a film
> that shoulders off sharp and high in the curve, or a film with a curve that
> goes straight forever. I use D76 at 1:3 for just about everything.
>
> Bob Randall
>
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