Thanks for the quick reply. I completely forgot about the 9-18 lens. I am using the 60mm port with the 12-50. Alex and have shown that this port works with 12-50 and 60 macro. I would like to keep the number of ports to a minimum for travel reasons. I am leaning towards the 8 mm because of port size, economics and cfwa at this time. I loved shooting with my 7-14 43rd lens but is was beast to travel with. The Panasonic 7-14 is a third the size and cost I handle. The Oly 7-14 is rumored to cost 1799.00. That's a lot for one extra stop of light. Thanks again for your response. One more thing. Can a more technically minded person why the Panasonic 8 and 7-14 can't use the same 170 mm dome. I did this with the 43rd rig I had by just adding an extension for the 7-14. I got sharp corners with this lens.
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.