HackiNews

• yhjc2692
  "Neurons in an expanded mouse brain" (3rd place) is also stunning:

  https://www.nikonsmallworld.com/galleries/2026-photomicrogra...

  I didn't know brains actually look like this inside. Our world truly is beautiful, across all scales!

  • dekhn
    Check out some early drawings by Santiago Ramon j Cajal; https://daily.jstor.org/cajal-imagining-the-brain/ (late 1800s)
  • changoplatanero
    i'm not an expert but i think the word expansion here is referring to techniques they use to spread everything out in order to make it easier to see. someone told me that they use the same material that baby diapers are made out of which expands when you soak it in water.

    • hobofan
      Yes, sodium polyacrylate is used in both expansion microscopy and baby diapers.

      However you also need a few other ingredients to ensure isotropic expansion, or otherwise the expanded sample isn't scaled uniformly in all axis and you get a skewed view of the sample.

    • small_model
      Where is the KV Cache in this pic?

      • jareklupinski
        that's in the mind (not pictured)

        this is just brain

      • bobmcnamara
        The real KV cache was inside of us the whole time.
      • DANmode
        Not pictured.
• doctorzook
  It’s a great photo, but the second-place jumping spider is my favorite: it is just so adorable.

  https://www.nikonsmallworld.com/galleries/2026-photomicrogra...

  • JumpCrisscross
    The parasitoid wasp doing its little dance move [1] gave me a chuckle.

    [1] https://www.nikonsmallworld.com/galleries/2026-photomicrogra...

    • lossyalgo
      I'm somewhere between "awww how cute!" and "I'm gonna lose my lunch".

      • stronglikedan
        I'm getting, "hey man, could you help me up" vibes, to which my answer would be a resounding "NO!"
  • nafey
    This pic reminds me of the Children of Time series of novels

    • 10u152
      Portia!
  • danw1979
    I will never moan again about having pollen in my eyes during hayfever season.
  • Levitating
    I have hard time accepting this is a real image. Do pollen really look like that?!

    • andrewflnr
      Pollen is quite diverse. So yeah, some pollen, apparently.
  • s0rce
    I'm guessing the pollen grains on it also look neat.
  • jacquesm
    It is! What are the little balls, are they pollen?

    • hack1312
      Yes, the title of the photo is “Jumping spider (Salticus scenicus) with pollen”

      • jacquesm
        Hah, ok, totally missed that, thank you. But it seemed an obvious candidate, they reminded me of those clingy balls that come off some plants so I figured they must be something like that.

        • contingencies
          Another class of biological thing that look broadly similar under magnification are fern spores. I guess moss spores too but I haven't seen those.

          • jacquesm
            Interesting, I have some here I should look at them under a microscope.
  • hyperbovine
    Yeesh that is creepy.
  • karlfrohlich
    Holy moly, I love it
  • sandworm101
    Is it so adorable because of the eyes? I don't think spiders have pupils. That effect seems to be a reflection of the camera/lens/apparatus taking the picture, rather than the actual spider.

    • lossyalgo
      For me its the seemingly cross-eyed look combined with the bits of pollen that remind me of a flower child i.e. a hippie spider.
• hn-aarvin
  The same photographer has two other photographs[^1] which previously were ranked highly in the contest. All seem to focus on chemical reactions and are stunning.

  Interestingly, the previous two—of a candle and match—used 2.5x magnification, where as this one required 20x magnification, which just goes to show as to how tiny the printer mechanics really are.

  [^1]: https://nikonsmallworld.com/people/ole-bielfeldt

  • radiorental
    Interesting, the Match Strike (2nd place in 2023) seems counter intuitive to me. The flames are leading the match with the following edge clearly visible.

    When I first saw his inkjet shot I refused to believe it wasn't completely CGI. So, I take it there is a degree of artistic freedom to compose a shot that may not be indicative of the actual subject? Then the line is drawn with AI enhancement?

    • SAI_Peregrinus
      Flames are somewhat transparent. That's why you can see the wick of a candle through the flame that surrounds it. The same is happening here, the flame is all around the match head, not just in front.
    • lossyalgo
      Regarding this image, the article states: "Bielfeldt does not use AI in his images, preferring to rely on traditional techniques."

      So I would presume it also refers to his other works?

      • radiorental
        Absolutely, I'm not suggesting AI was used, just curious about the level of artistic creativity allowed when composing the image.

        For me, colour enhancements are expected, compositions is where we leave reality. Either way, all of these images are an amazing insight into a world too small to see with the naked eye.

• landonxjames
  There is an interesting video of his rig for this shot in this article: https://www.nikonsmallworld.com/masters-of-microscopy/ole-bi...

  • dekhn
    basically: some aluminum extrusion for structure, some linear actuators for adjusting the position, and a nice camera with a nice objective. Plus he took apart the printer to get the sample in frame and controllable.
  • _ache_
    The video is nice but the movement is inverted from the photo.

    I would like to redo the setup myself.

• King-Aaron
  When I first saw this photo I refused to believe it was real. This is just so otherworldly, it's fantastic.

  • Smoosh
    I still have misgivings that it is AI generated or modified, but assume that the judges have done their due diligence. I’m a little saddened that I now have to question things such as this.

    • Liuser
      From the article: “Bielfeldt does not use AI in his images, preferring to rely on traditional techniques.”

      • gnabgib
        Yes. Macro photography always looks a little fake. Plus Nikon Small World doesn't have a good track record in 2026.

        • Smoosh
          I see that it uses stacked images, so that can account for the lack of normal focus cues.

          • madaxe_again
            Presumably he used software for this rather than doing it in a darkroom?

            FWIW I’m an astrophotographer, and I don’t really view 30 hours of stacked exposures as “a photo I took”, rather as the outcome of a lengthy signals processing chain.

            I suppose the question is where the line is drawn. Ten years ago, I doubt “I made this picture in photoshop” would have qualified as photography. Now that we have AI, the window has moved.

            • rcxdude
              I think it matters to what extend the representation in the image is derived from reality (as opposed to creative decisions made while modifying the image), really. Stacked exposures and photo stacking are largely there to remove the effects of the camera on the image, and better reflect the underlying reality, so I would still call the result a photograph. (color grading and such are often far more driven by creative decisions than the underlying reality and still that doesn't usually disqualify a photograph. In-camera visual effects are also still photographs).
            • orbital-decay
              >I don’t really view 30 hours of stacked exposures as “a photo I took”, rather as the outcome of a lengthy signals processing chain

              Is there a difference? It's still a photometrically correct capture of the scene, unless you're using narrow-band filters or multispectral compositing you would see the same if you had huge eyes. In the same way a stacked smartphone photo is still a photo unless it's also using AI, and even then AI denoisers are pretty much accepted in photography as long as they don't meaningfully affect the subject (as well as more traditional things like CPLs or extra lighting).

              Nothing in Nikon's challenge is natural, it's still a photo as long as it represents something real.

            • Gigachad
              All photos are the result of processing signal over time. The only difference between a 1/1000 photo and a 30h photo is the amount of time.
    • MBCook
      I think they had a problem with that last year, so I suspect they may be extra vigilant.

      • gnabgib
        Last month https://news.ycombinator.com/item?id=49934521
  • mmmlinux
    It's not AI, but it is a stacked photo.
• selectodude
  Inkjet printers for their faults are some of the most insane technology that I can think of.

  • yhjc2692
    Yep, the entire field of MEMS is both outlandishly complex and fascinating. For those who are curious, take a quick look at https://courses.washington.edu/me557/nthu/mems.pdf, which gives a nice overview of the different mechanisms and manufacturing processes involved.
  • dekhn
    I like the DMD (https://en.wikipedia.org/wiki/Digital_micromirror_device) in DLP projectors: millions of tiny mirrors each of which is electrically controlled to move to a specific angle quickly on torsion hinges.
• dotancohen
  I always try to convine my comments to the content of the article, but the captcha here has gone beyond all sense. It's presenting gen AI images of household items and asking me to identify e.g. the curtains... To prove that I'm human. It's literally a game of "guess what was in the prompt that generated this"... To prove that I'm human.

  • asdff
    Wait till you get the captchas that are serving what appears to be local imagery data. Spooky.
• rob74
  When you look at those globs of ink hanging from the print head, you start wondering how anything ever gets printed cleanly...

  • jeroenhd
    Inkjet printers are incredible technology taken for granted by how cheap the printing hardware has become in a short period of time. Printer companies moving towards rent seeking also doesn't help appreciate how incredible it is that for 50 bucks you can have technology that launches droplets with a precision measured in micrometers.
• lossyalgo
  There are some awesome macro videos he made during printing as well: https://x.com/macrofying/status/2112904628509528219

  • DavCreator
    https://xxcancel.com/macrofying/status/2112904628509528219
• HelloUsername
  Source: https://news.ycombinator.com/item?id=50204697

  • luipugs
    Linking to a page that links to the source is wild.

    • HelloUsername
      > Linking to a page that links to the source is wild.

      Sorry, what I meant was, the source has been posted earlier on Hackernews which generated a bit of discussion

• eig
  Does anyone know if there is a wallpaper collection of the winners of this competition over the years? Would love to make a slideshow of these images as my wallpaper.
• jcims
  Looks like this is the instragram page of the photographer for the inkjet photo.

  It's very obviously not a standard inkjet printer setup, but if you poke around you'll see some custom rigs that make it come together.

• melq
  Pollen (second photo with the spider) looks so sinister!
• karlfrohlich
  I truly thought this photo was AI, wow!
• ku1ik
  This winning photo looks like a modern demoscene production!
• erickhill
  I've been seeing this photo all over the place recently.
• 7kago_yomi
  Next, I would like him to visualize the "macro" economy side of things too.
• cellsstudio
  Thanks for sharing - what an incredible perspective on the mundane. Seriously seems like peering into an alien world and really it's just what's happen while someone sips their coffee and stares at a wall haha.

  Anyone seen Thirteenth Floor that old 90s VR movie? Really reminds me of the power for that.

  • jacquesm
    That was a very good movie. I really liked it, even if the ending was predictable.
• woliveirajr
  It would be funny if it was a Canon printer. Their quality and reliability are another league.
• hyperbovine
  “Ole Bielfeldt’s winning image embodies what makes Nikon Small World so powerful…”

  PR speak is so awful. You made it a whole seven words without talking about yourself, congratulations.