Its such a shame these are like rocking horse poop.
I had to write to Sony customer services as I recently bought a rather expensive lens that had no instructions, so while I was at it I asked for a lens brochure.
Apparently their customer service centre also has none, citing that it was "being updated".
Its a shame that they can't at least get one chained to a desk at every Sony store, I think it would really help raise the profile of the range.