I had read about rigging a macro lens by placing a fast prime lens, inverted, at the end of a first lens mounted on the camera, but I haven’t ever really been inspired to try it until I saw Robert’s tutorial. Turns out it’s easy and lots of fun to do with the K100D kit lens and the FA50mm.
Here’s a bottle cap from a fine Yeti Imperial Stout:
These are tiny screws (5mm to 7mm or so in length) from my coffee machine:
It’s not a substitute for a true macro lens with a close minimum focal distance (there’s so little depth of field that focus is shifty and hard to hold long enough for the shot, and the angle of view of very, very small) but it’s pretty cool all the same.