After helping some other users with Darktable’s Negadoctor module, I thought a workflow demonstration video might be helpful for others.
It this video, I use Flextight 3F scans but the negadoctor module part is applicable to dslr or other scanning formats.
amazing, thank you for sharing!
@Donatzsky can we add peerturbe channels to the aggregator?
As long as there’s an RSS feed, yes. Which there is, so it’s added now.
This was a great example of how to work with Negadoctor, which confuses the hell out of most people the first time they open it lol.
Thanks!
Edit: In my head the Dmin doesn’t change from roll to roll and so I just noted it for different films. As I was watching your video, it occurred to me that might be really wrong.
It’s art, do you like the results?
Good point.
Excellent tutorial and a commendable use of self hosted video. I have fond memories of working with the X5, 949 and 848 for many years. Amazing scanners. Subscribing to the RSS feed of your PeerTube instance, hoping to see more. 
What’s “the aggregator” in the context of pixls.us?
See this topic:
Glad you found it helpful!
If anyone has any suggestions for other parts of film workflows they have issues with, let me know!
I might do another quick tutorial on how I add metadata to my scans and organize them on disk.
@rexbron Nice video, thank you!
Have you done any work with scanning B&W negatives? If you have, I have a question.
The proprietary software I have for my Epson v600 automatically converts the negatives to positives and so my TIFFs do not need the negadoctor module. My question may apply more to the proprietary software than anything, but, would I be better off scanning the negative and keeping it negative and doing the conversion in negadoctor?
Thanks for your kind words!
I have scanned Black and White Negs but using the same flextight x5 workflow.
It’s hard to say if it is ‘better’, only you can decide that.
What I would suggest is for you to try it, to try to capture the entire range of the negative from d-min to d-max, and see if the negadoctor module produces images that you find more pleasing or easier to produce.
The propritary flextight’s software’s ‘film stock’ profiles tries to make things faster at the expense of dynamic range of the film and that is unrecoverable.
Negadoctor makes the conversion from density values to display values much easier for me.
Thank you for taking the time to reply.
I will give it a try!
Hi Andrew,
I noticed you correctly scanned the negative (i.e. matte side up). I also noticed that you didn’t flip the image, as you can see the bills are actually a mirror image of the shot taken with the camera!
I happened upon a lot of 25 color & over 100 b&w negatives taken with a Yashica Electra 35 fixed lens SLR in West Africa some 60 years ago. I ‘scanned’ them with a EF-S60mm f/2.8 macro USM lens on my Canon 60D DSLR.
I used both datktable & RawTherapee to ‘develop’ just to compare. I used a small Kodak light table as a backlight. So I had a perfect opportunity to test out the negadoctor module.
Here’s a link to some examples: West Africa scanned negs/slides
Yes indeed, I did not mirror it, as I prefer that orientation, but did not mention that in the video. Part of making up the narration as you go along I do mention mirroring in the black and white video.
Thanks for sharing your pictures!
Please allow me to add another link explaining how to use the negadoctor module. It was made by Bruce Williams for his Understanding darktable YouTube channel. In fact, I have a subscription to the channel and find it extremely helpful.
Bruce edits - ep 033.
This is the technique I used to ‘develop’ my color negatives. As for the b&w negs, I used RawTherapee 5.12.
I always us GIMP as a last step to fine tune everything