Can I use Hasselblad stuff on a Kiev?
Again, only the finders are compatible. So, you could put a Hasselblad finder on a Kiev if you wanted to (and could afford it). Hartblei’s self-branded cameras do offer film back compatibility with Hasselblad, so you can put a Hasselblad film back on a Hartblei-labeled camera. And, you can put a lens meant for the Hasselblad 1000F or 1600F on a Kiev 88, again, if you really wanted to.