I’m wanting to digitise a large number of 40 to 60 year old slides and lpan to use Vuescan with my Nikon Coolscan V ED, in preference to Silverfast and my Epson V700 (I don’t have a Coolscan driver for Silverfast). I will do post processing in either, or both, darktable or Rawtherapee. Any advice would be much appreciated.
The first issue that presents itself is the setting of the parameters (especially on the Input tab) in Vuescan. I have read both of Sascha Steinhoff’s books on using Vuescan multiple times and just become more confused on how to set it up. So, can somebody recommend a suitable set of parameters for scanning mostly Kodachrome, with a few Agfa slides too.
The second issue is that the slides have dust and scratches. I see some advice not to use the dust and scratch removal in Vuescan as this functionality impacts the image quality. So, where and how should I do dust and scratch removal? Steinhoff also talks about scanning in 64-bit RGBI mode, producing a raw file and then rescanning that in Vuescan to remove dust and scratches. Unfortunately no examples of how to do it are given. Is this double scanning a good idea? How does it work?
Later on I will be scanning colour negative film. Are there any special scanning requirements implied by negadoctor in darktable? Or in the equivalent in Rawtherapee (is there such an equivalent?).