A fly-tying tool

This isn't actually a lens, but an adapter to fit microscope lenses on an SLR-body.

A short telephoto macro from Sigma of older make. Not impressing and a little clunky, but built like a tank and bright too.

This vintage breed of Nikon macros is the creme of the old school AF lenses, and can be found used for little money.

A hunk of a lens, but quality wall to wall. Sharp, sturdy, bright. What's not to like?