Hi folks, I was looking at some macro options that would do double duty on my m43 and Fuji setups. The 2 lenses I was looking at are the late model 100mm f4 with extension tube. Good condition, seemed pretty nice and light. 150$ Or This 100mm f4 on bellows: well, actually it was the cone version like this: A little dinged up but looks like its all cosmetic. 100$. So I'm not sure which way to go. I guess advantage of the bellows is ease of focusing on tripod with the rail. Better magnification? I guess I could use the bellows set-up for other lenses? Advantage of the lens is that I can use it for more general purposes, can focus to infinity, easier to carry around outdoors? Not sure if I'm missing anything. To be honest, I haven't found a whole lot about either of these lenses online and haven't seen too many samples. Seems to be the general idea that they are pretty decent performers, but not outstanding. Any recommendations or advice would be much appreciated!