Making a digital camera is a project that appears easy enough, but it’s one whose complexity increases depending on the level to which a designer is prepared to go. At the simplest a Raspberr…
  • Flying Squid@lemmy.worldEnglish
    518·
    3 months ago

    The project is cool, but I am even more annoyed with articles that tell me what I think or want than I am with articles that used words like SLAMMED to make a mountain out of a molehill.

    There are so many better ways to write that headline with the same sentiment. For example: “An open source mirrorless camera is going to be a big hit.”

    My immediate, visceral reaction to that headline was, “no I wouldn’t” before I even opened it. I opened it anyway because it sounded cool, but don’t tell me what I would want to use.

  • randombullet@programming.devEnglish
    331·
    3 months ago

    With camera sensors being so good, the major differences will be autofocus capabilities.

    Imagine an open source autofocus algorithm that people can use their own photos locally so that it can focus on your shooting style.

    • CookieOfFortune@lemmy.worldEnglish
      3·
      3 months ago

      Does this sensor have AF pixels? Otherwise it’ll be hard to get good AF unless you put a traditional AF in? Contract based AF is always going go be terrible.

      • EddoWagt@feddit.nlEnglish
        1·
        3 months ago

        Contrast based af can be kind of okay if it works. I have an old Sony camera with contrast af and it’s fast enough depending on the lens. Of course in dark or low contrast scenario’s it sucks and it can’t detect which way it has to focus, so it likes to hunt for focus if it can’t find any

  • solrize@lemmy.worldEnglish
    32·
    3 months ago

    This will be multi-kilobucks but best wishes. There was a series of GPL cameras some years back (I’m spacing on the name) but they used smaller sensors and were more video oriented. Anyone remember?

    Edit: I remember now. It was elphel.com and it appears to still be around.

  • 9point6@lemmy.worldEnglish
    81·
    3 months ago

    This is super interesting, and a project I’m gonna keep an eye on. Not least of all because I’ve got a good selection of E-mount lenses.

    One thing that’s gonna be a struggle is all the specific lens corrections in photo software obviously will not be present for this. I wonder if the body behaves optically similarly enough to an existing Sony camera to be able to reuse those profiles.

    • linearchaos@lemmy.worldEnglish
      51·
      3 months ago

      I’d think they’d handle this with calibration. It doesn’t need to be as sexy as commercial, it just needs to have a reasonably easy process to fix it.

      Something like when you get a new lense, you aim it at a laser difraction pattern on a clean wall.

      Now you don’t worry about minors differences in body or lenses.

        • linearchaos@lemmy.worldEnglish
          12·
          3 months ago

          It would be super cheap to make a laser difraction grid. You could map the lense deformation because you know the lines on the grid are straight. This would be solely for mapping the properties of the lens / mount and how to handle defamation profiles. Once you dial in the lens you probably wouldn’t need to run it again assuming it can id the lens when you mount it.

          I would say you could use red green and blue lasers and look at convergence, But I’m not sure in any decent hardware that that would actually be off

          Edit: you should note, iPhone already does this for face ID. It’s not really that much of a stretch to make it go the other way.

          • ayyy@sh.itjust.worksEnglish
            21·
            3 months ago

            “It would be” so you haven’t done this but speak confidently about it being cheap and accessible?

            • linearchaos@lemmy.worldEnglish
              1·
              3 months ago

              You can purchase laser pointers with grid diffraction grating right now with zero effort to DIY.

              You can purchase house decoration style diffraction gratings which are a larger format but are intensely bright. They are however less portable.

              You can follow a thought emporiums instructions on how to create diffraction gratings, which includes the software and the process,

              And yes, I already own a 300 milliwatt laser with a diffraction pattern that would work for this.

                • linearchaos@lemmy.worldEnglish
                  1·
                  3 months ago

                  They have an incredibly high degree of accuracy. It’s the same thing iPhones are using for face ID. And if you needed it to be easier it doesn’t have to be straight lines as long as it’s dots in known locations

    • Masta_Chief@lemmy.worldEnglish
      3·
      3 months ago

      If the sensor is the same size the lens corrections should be identical. Now if it communicates focal length info into the metadata (on a zoom lens), or any data for that matter, that’s a different issue

      • 9point6@lemmy.worldEnglish
        4·
        3 months ago

        I believe focal length & aperture EXIF metadata do factor into modern lens correction profiles

        It’s worth highlighting that the profiles are typically based on the combination of a lens and a body, one lens used on two different camera bodies would result in two different profiles being used