I've been waiting for the Zeiss 50mm macro to be released to expand the macro capabilities of my rig (Sony Nex-7 with nauticam). After seeing all the release hold ups; and reading posts on this forum regarding shutter delay when using flash, I've been looking at other options. I came across this port option -- Zen FP-MBC100
http://reefphoto.com/shop/index.php?main_page=product_info&products_id=6912
it seems intriguing since I already own a metabones adapter and the canon 100mm macro. Does anyone out there have hands on experience with this underwater ? It appears you would not be able to rely on autofocus.
Thanks for any reply--
marc