The lens comes with a 52mm-67mm universal adapter, designed to clip to the front of whatever lens you usually use. If you use a compact, or a camera with a fixed lens (as opposed to a SLR), you might also need to purchase an adapter tube. I sourced both on ebay, from the USA and Hong Kong, and still had change from £40, including postage. So it represents a considerable saving on buying a 'proper' macro lens.
I was half expecting I would be able to photograph small coppers from a range of 100 metres, but maybe I had built my hopes too much! In a nutshell, the lens makes the difference between filling the frame with a 50p piece or filling it with a 20p piece - certainly an advantage when photographing the smaller butterflies. A worthwhile investment if you're cash strapped or tight fisted (or both, like me).
The accompanying, uncropped shot will give some idea of the potential.
