[pure-silver] Re: Good acutance and tonality for HP5+ 120 format
- From: Jean-David Beyer <jeandavid8@xxxxxxxxxxx>
- To: pure-silver@xxxxxxxxxxxxx
- Date: Mon, 18 May 2009 07:13:45 -0400
Peter Badcock wrote:
Hi folks,
I am about to develop a roll of HP5+ (120 format) and I need you to help
me settle on a choice of developer. So Initially, here are my
observations and requirements:
1. My scene contains a landscape shot with a Subject Brightness Range
(SBR) of about 8-9 stops.
2. I would like use a developer which will provide very good acutance.
3. I think I would like linear tonal separation over the SBR of the
scene (let me know if that requirement will not result in
subjectively pleasing results).
4. I'm not too fussed about minor to moderate differences in grain
size because print size will be no more than about 11x14inches.
5. I think I have narrowed down my developer choice to either
Perceptol or XTOL.
Can people help me decide between those two developers which will
optimise points 2 and 3 above? (Or even offer another suggestion - e.g.
I also have some 510-pyro to make up).
The nearest I can help you with is #3, because I have never used HP5+ or
Perceptol.
But for point 3, I have found that using Xtol 1+1 on TMax 100 and TMax 400
at 75F is that the straightest D/H curve I have ever seen. You have to
expose it enough, however, because it goes straight down and if you
underexpose, you will have no detail at all in the shadows (very short toe),
but as long as you are over that point, the shadow detail is very good.
Under my conditions, I expose TMax 400 at EI 200 for these results.
--
.~. Jean-David Beyer Registered Linux User 85642.
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