For what it's worth, I just wrote a quicky review using the WWL and CMC in Oly's PT-EP12 housing. The Oly 14-42mmEZ lens fits very close to the end of the port and the lenses work quite well. Not my favorite camera, but an interesting combo that's pretty small.
The Zen DP-170-N85 works without an extension with the Oly 8mm FE. The DP-170-N85II won't work. There is no one port solution for both the 8mm FE at 7-14mm lenses at this time. But heck, it's Christmas you never know...
As Jim showed, I think you're missing a very large point. The f1.8 has much faster AF in the dark conditions we find underwater. You can shoot at a lower ISO in many situations, deeper dives, caves, underhangs and on wrecks, as well as dusk and dawn. Even during cloudy conditions in more turbulent contditions the extra light at depth allows the lens to catch focus faster, this is especially true for m4/3rds cameras that rely on (modified) contrast AF.
I've published a Port Configuration Guide on our blog that has all of the various possible combinations for Nauticam and Olympus housings with Zen, Nauticam and Olympus ports, extensions and gears.
There's a lot of different configurations. Right now, there's not a one size-fits-all like with DSLRs. The optics on m4/3rds lenses and the large physical size of the Olys make it hard. But I think given some time the manufacturers will do the best they can to work towards that goal.
Having shot the 8mm with the small Oly dome, I'd really like to try in with a larger 170mm dome and see how much less edge distortion it has.
Thanks for posting these Jack, its a very handy reference.
There's one change not yet captured in most descriptions I've read. Selection of the small focus point is now much easier with the firmware update. From the SCP, select focus options, press INFO, then up/down arrows to change.
By the way, the original post was spot on about thr Olympus menus, they are indeed a maze.
Glad they helped. You get used to the menu layouts after a while, they do offer an amazing amount of adjustment and fine-tuning. But items are sort of hidden or not where yo expect them to be...
From what I've heard, I doubt there will be an Oy EM-1 successor until late next Spring. I've had no problems with focus in low light especially with the new f1.8 8mm FE, which is an awesome light gatherer.
We tried it in the Nauticam E-M1 housing and it will require that you add the camera body first into the housing, then the lens as with the 12-40mm. But it will need a much wider port body to fit the lens and a zoom gear. My guess is the the Nauticam N85 (MIL) to N120 (DSLR) 40mm ext adapter with zoom control, plus about a 50-60mm N120 extension and Nauticam 180mm N120 (DSLR) dome (or larger) should work fine. But Nauticam has not released a guide yet as they are still testing these new lenses.
You might want to check out our Maintenance Handbook. Warm water and vinegar will dissolve salt, maybe a spray of silicone lube and light grease. You can take out the main o-ring and put it in a baggie inside the housing.