> To profile the scanner itself, so that differences in films are retained
> in the scans, is a trickier business.
Silverfast Negafix is a "soft" profile and they don't have targets in a good
number of current emulsions. It does retain the original spectral
sensitivities of the film which can be later tamed in post if desired. AGafix
in AK does a very nice job of these. Mooseafix is excellent too but the
owner doesn't need too much extra work. Curiously the old Portra 160 NC with a
"hard" profile was quite accurate and nice for landscapes though the original
prints were flat---sublime for portraits though. I have attached an email from
Silverfast tech when I enquired about soft profiles for other films:
"Dear Mike,
we can only create Negafix profiles, which are combined scanner/film profiles,
on emulsions our
supplier prints targets on. So unfortunately we do not have a Portra 160
target.
But you could take a profile from the old Portra emulsion and adjust it
manually, save it
(in the Ai Studio version) and build up your own personal profile library.
Vuescan lets the user himself photograph an IT8 target and then measure out
the color fields on
it. I did never try that but can imagine, that this kills the character of the
material because it is
a really hard profiling (again: not really sure about this). Additionally the
developing process and
the exposure value of the film would have a really big influence on this as
well.
Our NegaFix profiles are made out of three targets (-1, +-0, +1 exp) and a
powerful mathematic algorithm which keeps the typically film effects of the
emulsion. There is also a color cast removal inside of Negafix which can be
switched on or off for creative photography that
sometimes really likes to keep color shifts through the choice of film,
filters or cross developing.
Maybe you give our demo version a try and have a look at the NegaFix dialogue
especially.
When getting your demo serial, choose the Ai Studio version to get all expert
adjustment
possibilities enabled.
Kind regards
Nico Schneider
- LSI Support Specialist -"
I say let Velvia be Velvia.
Mika-no-longer-fix, (until new scanner), Mike
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