So a fellow shutterbug co-worker (not Photocat) said "hey I have this belows thing for nikon's you might want to play with it." Hee Hee Hee Hee. Woot. I am hooked. I will never return it... I know it looks like kinky fetish toys but this thing is cooool. And what can it do? This is "close" to max for the straight bellows. But It has a 1x converter I didnt use. AND A 60MM TUBE! Pssh. THis one as you can tell was shot by Photocat... all kinds of focus issues. And the model doesnt feel comfortable with her behind the camera.
Cool - bellows are fun! Just a tip: Don't store them fully compressed, always leave the mechanism slightly open, and try and leave it open a different amount each time you put it away, this will help reduce the occurrence of stress damage to the actuall bellows.