Tobias Ellinghaus schrieb am 08.09.2016 um 11:23:
Am Donnerstag, 8. September 2016, 08:38:03 CEST schrieb Bernhard:
mean darktable will read something like the Vuescan DNG files now?
http://www.hamrick.com/vuescan/html/vuesc33.htm#outputrawdngformat
Maybe, not sure. Do you have a sample? The feature was added due to some
scanned DNG, so it's possible.
I'll do provide a sample when I'm back to my office.
Then I'll also try the change and report back.

Roman Lebedev schrieb am 08.09.2016 um 12:14:
That being said, scanning into DNG is just plain wrong.
Just scan in TIFF with 3 channels.
as far as I understand what Ed Hamrick is doing the option was added to enable users of some proprietary software to import scanned images and process them in their software.

What I am doing: I use Vuescan to scan to TIFF but with all four channels as I don't want to loose the IR channel data (Vuescan is able to reprocess from file so you can fiddle around with the dust and scratch reduction settings later). I save the scanner RAW data to that file, darktable will import these files without any issue. Furthermore I can do dust and scratch even later as I can use the same .xmp of dt for the reprocessed file again.

Christian Mandel schrieb am 09.09.2016 um 08:57:
Don't want to hijack this thread, maybe just a little bit . Do you have some tips for scanning with VueScan? I am a bit lost in all the options that are not very well explained in the documentation. Especially, I wonder how I can scan and save a negative without inverting it at the best quality possible (Reflecta CrystalScan 7200). Is it possible to not apply but save the ICE data?
A short description what I do is found here http://www.bilddateien.de/fotografie/dunkelkammer-negativ.html#nondest - whenever there is some spare time around I will add a tutorial for this.
In short: I use the invert functionality of darktable for this.

--

regards
Bernhard

http://www.bilddateien.de

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