I finally got around to bolting together the two Cokin filter adapters that I bought a while ago. The aim being to stack two lenses together to experiment with some real macro photography.
The results can best be described as mixed, but fascinating — seen so close up, some stuff looks almost completely unexpected. The trouble is, with such a narrow depth of field (I estimate a couple of hundred micrometers), it's really hard to keep anything in focus.
The middle image is an erigeron flower — about 10mm from tip to tip, with the little critter being about 2mm in body length.
The last image is the beast itself — my Tamron 70-300mm zoom, stacked with a reversed Canon 28-105mm.
The first image is left as an exercise for the reader — leave your guesses in the comments.