nzmacro has added SLR lenses to the front of his FZ10. How or why this works is somewhat beyond me, but he explains in the following post (Steve's digicam, Panasonic, 7 Dec 2004)...
A rear lens cap, Nikon, Canon has the centre cut out. That is then glued to a filter ring which attachers to the fixed filter ring on the FZ10. Different to most, I don't like {the SLR lens} reversed.
...the smaller we go in focal length, the larger the ratios. The zoom ring on the added lens, decides the ratios. Very handy for getting larger ratios. So the FZ10 zoom also decides the ratios, takes a lot to get used to, that's for sure. :-) The Canon 35-70 just fits reversed in the FZ10 hood...nice tight fit and it's also the only lens I do reverse.
{`tchuanye' suggests that the attachment between the SLR lens to the front of the FZ10 must be under a great deal of stress because of the weight of the lens}...They are never left without being held solid {held by hand?}. {The photographs of the lenses attached to the FZ10 were} only quickly done to get a shot of it. Always hand held and well looked after, I promise, LOL. The distances are interesting. Lens to subject distance with the fly shot with the Canon 100mm is around 7 inches (175mm approx). The Sgma of Nikon zoom at 200mm is around 12 inches from the subject (200mm). So there is plenty of room for lighting, comfort, etc..
{More information about this technique can be found on the photomacrography forum or photomacrophy article by nzmacro}
{nzmacro's web site is a beautiful and fascinating demonstration of macro photography. The photograph above was taken by nzmacro with a FZ10 and a SLR lens. There are plenty of more `pleasant' photographs on his web-site, if you don't like flies!}