Hey guys. I recently got a 500C/M, and with it I bought a 150mm Sonnar. The lens is temporary, because the one I really plan on using is the 80mm Planar. But I'm curious: which version should I buy? I want to pay less than $400 if I can, but I don't want one that's really outdated or something. I'm new to Hasselblad so any help is appreciated.