Just got my pt-ep06 housing (with the plain port, no focus light). Turns out that it is not bundled with a diffuser and the built in flash can not be used because the port is casting a heavy shadow. This is not exactly what I expected - hoped I would be able to use it if my flash fails on me. Same thing with zen dome of course.
Hope it helps someone to make the right decision.
Hope it helps someone to make the right decision.