Hi Zippy
Zippy1970 wrote:what reason exists to set it to the actual film type? I mean, I thought the reason I can choose different film types is to get better results than when setting it to some default generic setting.
Every film emulsion has a specific sensitometric curve (response to light). It gives especial contrast, shadow and highlight details as well as midtones.
In theory, it means every film type has certain characteristics. I say in theory because in the praxis, this is just an ideal affected by many factors like, different film production batches, storage, atmospheric circumstances after storage, development times, developers purity, etc. etc.
In the darkroom contras, shadow, highlight details and midtones can also be manipulated to achieve certain aesthetic goal (this is always subjective)
The idea behind the NegaFix curves is to compensate the scanner response to match the given curve of every film emulsion.
Zippy1970 wrote:If that's the case, then why is the left image actually worse than the right image? It's not a matter of "taste". The right image shows much more detail. The left image obviously has a contrast problem and less dynamic range than the right image.
Well, contrast, highlight and shadow details are in fact taste choices. The fact that to your opinion one image is worse than the other is subjective.
The profile for the curve has been created with a specific calibration target to match the curve given by the manufacturer.
If you decide the other profile suits your taste better, then nothing is keeping you from using it.
Cheers