wow, how was it possible to make such a lens for 6x6 when they don't even have anything smaller than one 2.8 for hassleblad/mamiya normally, is it just the expense or is it more difficult? I just find it strange, my Mamiya 7 would be so much better if there were a 1.8 option let alone a 0.70 option but it doesn't even have a 2.8, 4 is all you get.