If you are producing this kind of camera shake (perfectly distributed in all direction) at 1/500s, you have a natural gift nobody on this planet have...
1/500 and 1/125 shouldn't be camera shake...
To the extent that each photo here was presumably taken with the 80mm, I find it hard to believe that 1/125, and more so the 1/500, shutter speed would produce the blur, especially consistently from photo to photo. The majority of my Hasselblad shots have been handheld, with the 80mm, with shutter speeds down to 1/60, and I don't recall ever having this issue (and I don't claim to have the steadiest hand). This would lead me to believe the mirror placement may be off (but as others have commented, there should be something in focus, unless the true focal plane is all forward of the subjects).
OP: If all these shots were from the same lens, have you tried using the other lens? Also, do you know of any other Hasselblad users in your AO from which you can swap body/lenses to see if you can determine if it's an issue with your lens and/or camera body?