The Deutsches Technikmuseum Berlin is a museum presenting a large mount of technology history. Quite naturally, they are biased toward presenting a lot of German achievements and this country is known for hosting some of the very best optical engineers and being rightfully proud of brands like Carl Zeiss, Leitz/Leica.
Charlie Sorrel wrote a piece of article for Wired.com, titled “Gallery of Sawn-In-Half Cameras” that I intensely recommend reading.
![IMG_2616.jpg](https://www.wired.com/images_blogs/gadgetlab/IMG_2616.jpg)
![IMG_2584.jpg](https://www.wired.com/images_blogs/gadgetlab/IMG_2584.jpg)
![IMG_2588.jpg](https://www.wired.com/images_blogs/gadgetlab/IMG_2588.jpg)
![IMG_2591.jpg](https://www.wired.com/images_blogs/gadgetlab/IMG_2591.jpg)
![IMG_2612.jpg](https://www.wired.com/images_blogs/gadgetlab/IMG_2612.jpg)
![Water cutting machine Water cutting machine](https://mainlymetals.com/images/WaterJet/OMAX_Waterjet_55100.jpg)
Now, if seeing them is not enough for you, I suggest that you cut a few of your lenses. The most difficult part is obviously to saw, cut and hack these fragile devices. You need a very powerful and precise saw. I found one at Mainly Metals, a company offering cutting equipment (I no longer can name them “saw”) providing water jet machining.
They cut metal, glass, stone, plastics, wood, with a high-power jet of water filled fine-grain garnet. And, this is environment-friendly!
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