Aw, I should have known it was just too vague for such a stickler as
you :-) Kidding, of course :-) It always is wise to speak to someone
who actually knows the subject well.
But seriously speaking...
> > The same holds true when one shoots negatives.
> Here I must disagree. Before going largely digital, I had some time ago
> moved from slide to CN film. CN film has wide overexposure latitude, 2-3
> stops, and narrower underexposure latitude, 1-1.5 stops.. Once I got a
> film scanner, I was simply amazed at the highlight detail in negs that
> was not visible in automated prints. The automated printing process
> tends to throw away highlights to help reduce the broad dynamic range of
> the negs to the narrower one of print paper.
Overexposing print films - by a 2/3 or a full stop - is quite common
among photographers as it yields better prints with more color and
contrast (OK, it may fall into everyone's liking but generally
speaking vivid colors is something people like). I think the attitude
should depend on what one wants to do with the film; print films are
generally meant to be printed even though some people prefer to have
them scanned and displayed on a computer screen - when they look
completely different.
> I have found SO many blue skies with white clouds in negs where the
> prints simply showed a rather undifferentiated whiteness. Shoot CN for
> shadows, if they are important (shoot left).
Erm, shooting for shadows means underexposing your image? I've always
thought it's the other way around - you apply positive exposure
compensation (e.g. +1EV) when exposing for shadow so - keeping to the
terminology - you expose right.
> > With diapositives it's the other way around - it's better to underexpose
> > slightly.
> Again, I don't entirely agree. Slide film has too narrow a dynamic range
> for many outdoor subjects. The decision whether to over or underexpose,
> or stay neutral, depends on which end of the tonal range you least want
> to lose. This may most often mean underexposure to retain highlights for
> your favored subjects, but isn't a good general rule for everybody and
> all subjects.
Sure, I didn't mean to proclaim an universal truth. In *every*
situation one has to do some serious thinking before applying general
rule of a thumb. Again, it's what people generally do - they *rate*
(as it's been labeled few days ago on the list) as somewhat more
sensitive to the light and have it processed normally thus receiving
slightly underexposed slides.
--
Lukasz Grabun
http://www.grabun.com/
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