That´s it.
I like to do that becouse it gives me more room to control the contrast in
the darkroom.
The matter of the diluted developer is a personal thing. I find that using
a diluted developer and longer times reduces the grain size, and the
shrpness as well, so the pictures have a "softer" look. It has got a
technical name which I do not remember.
Of course, the available light is something you can not control. I think
in Brasil light can be quite hard, not like in sunny sheffield. So another
possible thing is to take pictures just very early in the morning or very
late in the evening.
On Mon, 13 Nov 2000, John Hudson wrote:
> P Bernad wrote:
> >
> > I am not really an expert, but what I'd suggest in the case of b&w film is
> > to overexpose and underdevelop the film. And use the developer as diluted
> > as possible.
>
> Over exposure in the camera plus shortened negative development [called
> pull processing] time gives lower than normal negative contrast but
> normal [or very near normal] negative density. The developer should be
> used at normal concentration.
>
> John Hudson
> >
> > On Mon, 13 Nov 2000, John Hudson wrote:
> >
> > > Ray Moth wrote:
> > > >
> > > > John Lind wrote:
> > > >
> > > > I believe it's much easier to reduce the contrast of a lens than
> > > > increase it. Someone correct me if I'm wrong: doesn't a ND filter
> > > > also reduce contrast in addition to the light reduction (one could use
> > > > a polarizer for this too)? Soft focus, fog, or diffusion filters
> > > > typically reduce contrast, but they also reduce resolution.
> > > > =======================================================================
> > > > I agree, there are many ways to reduce contrast. To me, the ND filter
> > > > approach makes sense, because the less light there is the lower the
> > > > contrast. In a totally dark room, everything looks black, whatever its
> > > > colour or shade. There is no contrast. If the light level is increased,
> > > > light coloured objects brighten while dark objects are still dark, i.e.
> > > > contrast is also increased. Use of an ND filter (or polarizer) will
> > > > simulate the effect of a dark room, reducing contrast.
> > >
> > > To me this is not logical. Contrast is a consequence of the light,
> > > whether natural or otherwise or a combination of both, prevailing in and
> > > about the scene that is to be photographed. An ND filter serves to
> > > lengthen the time it takes for that light to register on the film but
> > > does not in and of itself affect the quality of the light in question.
> > > Use of the filter necessitates a slower shutter speed and / or a larger
> > > aperture but other than that the quality of the light is not affected by
> > > the ND filter. All the filter does is to extend the time it takes for a
> > > given volume of light to register on the film as compared to the time it
> > > would otherwise have taken without the filter in place. If these
> > > assumptions of mine are correct, how might an ND filter affect contrast?
> > > As the name implies does not an ND filter just serve to slow the rate at
> > > which the prevailing light passes through the camera's lens system?
> > >
> > > > Another way to achieve low contrast could be to under-expose negative
> > > > film, thereby depleting the emulsion. The overall brightness can be
> > > > corrected in the printing stage but contrast will be lower.
> > >
> > > Doesn't under exposure in the camera coupled with normal film
> > > development result in near normal negative contrast but lower negative
> > > density? Extended film development would result in higher negative
> > > contrast and near normal negative density. Lower negative contrast and
> > > very low negative density would result from underexposure in the camera
> > > coupled with shortened film development.
> > >
> > > jh
> > >
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> > >
> >
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