Vuescan: Read raw and save-as raw?

[Joseph Elfelt]

I already know how to tell Vuescan (8.4.52) to save a 'raw' file to
disk and then to read that file and do some processing. However, I
have been unable to figure out how to do #3 in the following workflow:

1. Scan and save raw file (64 bit RGBI) without any processing.
2. Read the raw file and only apply dust and grain filters
3. Save the processed file as a raw file

When I tell Vuescan that the input is coming from a file (instead of
the scanner) then the output tab does not give me the option to save
as a raw file.

I tried setting "Raw output with" = Scan and also tried setting it
to Save
No joy.

My goal is to scan a number of images and then launch a batch job to
let Vuescan apply the filters to those scans while I go away and do
something more useful than stare at the screen.

My scanner is a Nikon Coolscan V ED, but I doubt that makes any
difference for my question.

I want to have a 'linear tiff' (in a DNG wrapper) come out of Step
#3. I will then (1) use that DNG file as my master archive and (2)
open that DNG in the latest Adobe Camera Raw for further processing.

What am I missing?

Joseph

 

[Joseph Elfelt]

I already know how to tell Vuescan (8.4.52) to save a 'raw' file to
disk and then to read that file and do some processing. However, I
have been unable to figure out how to do #3 in the following workflow:

1. Scan and save raw file (64 bit RGBI) without any processing.
2. Read the raw file and only apply dust and grain filters
3. Save the processed file as a raw file

<snip>

Perfs ==> Enable raw file ==> On
See P.84 of the user guide (last line)

I had deleted the VueScan ini file and neglected to reset this switch.

Joseph