I recently bought a Hasselblad 500C/M from a seller on eBay that unfortunately arrived with some issues mostly related to the shutter (for example the slow shutter speeds stick open at times, and sometimes the shutter won't open all the way, or at all on the high speeds). One of these issues is that sometimes (not every time though) the in-lens shutter stays open when I activate mirror lockup. Since the seller has agreed to reimburse me for the repair costs I was wondering if the mirror lockup issue relates to the mechanism in the body, or the actual shutter mechanism in the lens. Having to send in only the lens would probably be a bit cheaper, and from what I can tell all the other functions on the body seem to work fine.