Originally posted by Eulogy Do you need to file for commercial tags for that?
Also: This+Pentax Q Via 645->K->Q
Nope, don't need commercial tags - just a hefty tripod.
Not sure what you mean by second line, but if it is a question, yes, I assume you
could piggyback a K to Q adapter on a 645 to K adapter, but I haven't a clue if it would work mechanically (i.e., operate the aperture), or even focus on the sensor plane. I leave that to those more experienced in how adapters work. While I do own a 645 to K adapter, I do not own a Pentax Q, and certainly not a K to Q adapter, so I can't try it out.