New Olympus 8mm FE lens

Hi,

Has anyone tried either of the two Zen port combo for the new Olympus 8mm FE?

Olympus M.Zuiko 8mm f/1.8 (option #1 small dome)

Zen Underwater DP-100-N85 (*see below for additional compatibility)

Nauticam 36630 Mini Extension Ring 30

Or

Olympus M.Zuiko 8mm f/1.8 (option #2 larger dome)

Zen Underwater DP-170-N85

I'm looking at purchasing my first dome port, to upgrade from the 12-50mm kit lens behind flat port on OMD-EM5 in Nauticam Housing.

Cost wise the DP100 is pretty close to the DP170, is the DP170 a better option?

The other option I'm thinking of is to take the marketability cheaper option with the heavily reviewed 8mm Panasonic FE and Nauticam 4.33 acrylic dome.

Is there a head to head comparison review out there on their performance?

Any general advise would be good.

Thanks

Hi

Hope this information is useful. What I know about the new Oly 8mm FE f 1/1.8 lense sofar is:

-the lense fits on the older PEN housings using the ZEN ER-EP25 extension ring and ZEN DP-100-EP dome lense.

-some top side pictures show excellent performance (e.d. depth of field, corner sharpness) even at the widest aperture.

-some UW pictures taken in darker spaces like caves with natural light looked spectacular to me. Its hard however to judge from these pictures technical details such as corner sharpness, depth of field, especially at the widest aperture.

The type of dome lense could be a critical factor here. I believe that the Zen dome worked very well with the older Pana FE 8 mm f 1/3.5 lense. Not sure if this holds also for the longer Oly 8mm FE 1/8 lense with the extension ring. Possibly some people have the opportunity to run some comparative tests?

Cheers