Phil, just sold all my 4/3 stuff to move to micro 4/3. So far I've bought the M1, 12-50mm, 60mm macro and 40-150mm. Plan on getting the 8mm FE, 12-40mm, 7-14mm or 9-18mm and Nauticam M1 housing when it comes out. Question. Can the Olympus dome port be used on a Nauticam housing? If not it's for sale. I definitely purchase a large dome for the over/under shots but 4.33 dome would be nice for travel, but it would be my second choice after a large dome port. BTW here is shot I made with your 7-14mm.