Focus Stacking with a Raspberry Pi – One year On

    It is more or less a year since I got my focus stacker working, and there have been many developments and changes to the set-up during this time.

    What’s good?

    • Interfacing with the RPi using a laptop running MobaXterm is straightforward and the built in editor is really handy
    • The concept of moving the specimen and not the camera works well – the moving parts are very light weight with hardly any inertia, and vibration is not an issue.
    • The Componon 28mm lens is a dream – so sharp
    • Continuous lighting using a light box lit from below is a simple solution to provide even diffused lighting
    • The whole focus stacker rig works, and produces very acceptable extreme macro images
    • It has kindled an interest in entomology and insect anatomy

    What’s not so good?

    • Getting real time into the RPi automatically – should be easy!
    • Setting up the specimen is still fiddly – but not as difficult as it was before the jack and the rack
    • Cleaning and mounting the specimens – and there is nothing that can be done about that other than doing it!

    What next?

    • Fix RPi real time – somehow DONE
    • Build a bigger light box to give more room around the specimen for adjustment DONE
    • Take more stacks
    • Improve my insect identification and understanding of  insect anatomy

    And then? 

    • A  3-axis (of spin) specimen mount – motorized – remote controlled – ha ha!

What’s it all about?

Here are my jottings about my photographic projects and activities. I have been working on a focus stacking macro photography rig. There are quite a few posts about that. In addition I write about other photographic activities as and when!

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