Microscope Clip

This is original PNNL microscope clip (see [pnnl.gov][1] and [midcolumbiastem.org][2]) with customizable hole diameter. This way you are not limited to glass beads of specific diameter but you can also use your own lens. For example lenses from laser pointers as described in [instructables.com][3].

[1]: https://availabletechnologies.pnnl.gov/technology.asp?id=393
[2]: https://www.midcolumbiastem.org/SiteCollectionDocuments/Smartphone%20Microscope/Original_one_big_page.html
[3]: http://www.instructables.com/id/10-Smartphone-to-digital-microscope-conversion/