For reasons of my own, I have long been wanting a telecentric lens.
Badly.
But they are generally very very very expensive. However I recently came upon a dirt cheap one on ebay and figured it would be a good start to learn the technology.
There was just one issue. It didn’t mount to my camera! And the adapter was $650. What’s a guy to do?

The answer, clearly, is make my own. The OEM was kind enough to include a blueprint-styled drawing of the adapter as the product listing image, which I was able to use to design and 3d print my own version.

I simply took the image, loaded it into Solidworks, and scaled it to the known dimension of the F-Mount flange. It is important to get the overall length right, as being even slightly off means the lens will be unusable. I created geometry with 3d printing in mind, and sent it. It worked!

While I am still unable to create the photos I want due to the very small objective lens size, I am very happy with how these initial tests went.

Unfortunately, WordPress seems to compress the images no matter what I set them to, which is a shame.
The full-res versions are truly awesome with the amount of detail and dimensional accuracy.