especially as I usually invert with ColorPerfect anyway.
Another reason to vouch for a IT8 profile.
🙂
Vuescan Pro has an integrated profiling function; it only creates "matrix-based" ICC profiles (simple, not extremely accurate but OK), much better than nothing.
Scanning in raw output mode, inverting with ColorPerfect (without clipping) and then applying the ICC input correction profile, you get a good starting point.
From there, usually an AutoColor (if you use Photoshop) set to no clipping gives correct colors and retains the huge dynamic range of the negative.
Oh and another thing... this is not directed to you kanzlr...
Profiling a scanner with an IT8 target DOES NOT MEAN "profiling a film", it means "profiling a scanner"!
So it's not true that "if you do a profile with a certain IT8 slide target, then if you scan another kind of film it does not work", like someone stated.
The purpose of ICC profiling with whatever IT8 target is to describe the color&gamma errors of the *input device* (scanner in our case).
So that profile is valid whatever the film you scan.
That said, different IT8 targets exist based upon different slide film, because the base-color for the polynomial interpolation at the basis of ICC profiling are slightly different in different slide films, and so is the dynamic range.
So you get slightly better accuracy using the same target(s) of your most scanned film(s), but this does not mean, at all, that ICC profile done with a Velvia IT8 target works bad when scanning Ektachromes.
Fer