Yes the flash pops up
l have no issues with the autofocus and much faster than the olympus epl10 i previously had
i usually do a single dive of about 1;45 minutes in shallow water and never had an issue
that being said i really dont ask 4 much
I own this set up and also have the nauticam wide angle lens
nauticam cmc and smc attached by bayonet
very happy with it, that being said not being able to change ports could be an issue for some(not me)