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Automating my 35mm film scanning pipeline

75 points · 54 comments · shannadige

  1. ravila4 · · focus · HN ↗
    Interesting project! I scan 35mm and medium-format film with a mirrorless camera, macro lens, and Lomography film holder, then convert with Negative Lab Pro in Lightroom. I’m happy with the results, but the Lightroom subscription has me considering writing my own converter.

    Could you share more about your NumPy pipeline, or publish the code? I’m particularly curious about how you use the blank film reference and roll-level measurements to handle the orange mask, color balance, and tone curves. Do you use camera/scanner calibration profiles or film-stock-specific adjustments, or estimate everything from the scans themselves?

    Also, your screenshot appears to show an OpticFilm 7400. Would you recommend it, and roughly what did you pay? Have you tried camera scanning? I’ve been considering automating film advance and capture on my setup, but consistent color conversion is the part I’m least confident about.

    1. dang · · focus · HN ↗
      Can you please not post AI-generated or AI-edited comments to HN? It&#x27;s not allowed here - see <a href="https:&#x2F;&#x2F;news.ycombinator.com&#x2F;newsguidelines.html#generated">https:&#x2F;&#x2F;news.ycombinator.com&#x2F;newsguidelines.html#generated and <a href="https:&#x2F;&#x2F;news.ycombinator.com&#x2F;item?id=47340079">https:&#x2F;&#x2F;news.ycombinator.com&#x2F;item?id=47340079.

      Of course, it&#x27;s impossible to know for sure what was LLM processed or not, but some of your posts (like this one) have been getting classified that way.

      1. dekhn · · focus · HN ↗
        Dang, would you reconsider your message here? I think it was uncalled for and chilling to legitmate discourse.
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