I am a little bit confused about how to prepare my color and B/W negative scans for NLP processing.
Some say scan at gamma 1.0 without ICC embedded. Some say need to use the TIFF prep utility. Some say no need to whitebalance with color negatives. Guides and forum conversations are clashing with each other.
What is the right way?
I am scanning 50 years old color negatives as positive in Silverfast 9 AI software, saved as 48bit TIFF with iSRD since i really need the cleaning for these old negatives. So i can’t use DNG files.
Please don’t recommend to use Vuescan to me, because i find its dust and scratches removal weak/bad.
B/W negatives should be also scanned 48bit but without iSRD cleaning, but i had scanned these 16bit which was not correct i think. B/W doesn’t need whitebalancing before using NLP as i understand.
I scan all with gamma 2.2 and AdobeRGB icc embedded, which is the default of Silverfast.
Afterwards i open the TIFF in lightroom, whitebalance it for color negatives, crop it, apply NLP with soft saturation. Then i choose either the default LAB or Lineair Gamma profile inside NLP. When i choose Lineair Gamma i get clipped black/whites which i need to adjust blacks/whites slider inside NLP.
I turn off NLP sharpening, since i might need to process the resulting TIFF further in Lightroom or Photoshop.Some results are quite grainy compared to normal scans from Silverfast, so i wonder if some aggressive processing is done during the conversion. I also compared NLP with grain2pixel plugin and there the grain is same as a normal scan.
If i switch to Photoshop for dust and scratches removal with xSRD plugin, i am leaving the non-destructive workflow right? How do others process their dust and scratches? Using the healing spot is quite time consuming.
In Lightroom i see editing in Photoshop is set to ProPhoto RGB and resolution to 240 px. Should this not be changed to a matching colorspace and resolution?
I am scanning with a Nikon Coolscan V at 4000dpi and an Epson V850 at 2400dpi. Both with Silverfast 9.
I noticed with negative to positive conversion that the used software NikonScan or Silverfast can have some effect on the resulting colors, so i decided to use the more up to date Silverfast software.
Lightroom uses ProPhoto RGB, should this not be set equal to the scanned input AdobeRGB also when i start processing with NLP?
Hope someone can give more info on this, so i don’t need to waste time redoing my scans. Much appreciated. Thanks in advance.