The Lieberkühn reflector is a classical technique for full, even illumination of small subjects at close ranges-a fitting addition to any macrophotographer's toolbox. I have been developing this classic technique, re-inventing it for modern mindsets and contemporary photography technologies. Rather than relegate this (at first glance) anachronistic technique to the bin pile of the past, I aim to make it relevant to modern tools and imaging objectives (both in terms of the lenses and the goals of modern imaging).
The Lieberkühn reflector, or speculum if you prefer the original Latin etymology, dates back to the inaugural days of microscopy. The likes of Robert Hooke, Anton van Leuwenhoek, and many of their contemporaries may have experimented with this technique or similar, although the devices take their namesake from the polymathic physician Johann Nathaniel Lieberkühn of a few years hence.
You can be a part of this re-imagining of classical technology for the modern age. My experiments with Lieberkühn reflectors have yielded some pretty impressive results (http://thebilder.wordpress.com/category/project-lieberkuhn-reflectors/), but I don't own lenses of every standard diameter and I can't possibly think of every possibility to examine. Therefore I'll put each of my designs for Lieberkühns in my shop at cost: for "sale" for the price of Shapeways printing, until one or more successful prints have been made. I would welcome your feedback, which can be made at thebilder.wordpress.com or on twitter @bilderstudios. If you post your own review let me know and I will gladly link to it.
Let us take advantage of the technological prowess of yesteryear ::and:: of today. If we do a good job, we may even make it the tech of tomorrow.