M4/3 CFWA Wide-angle Macro with Mini-dome Zen DP-100

[JohnC]

Curious if anyone has tried CFWA with an Olympus 8mm F1.8 for CFWA, with either a Nauticam or Zen mini-dome? The Zen DP-100 with a 30mm extension ring is listed as the correct dome port setup from the chart, but I see the dome shade on the top and bottom of the frame. It's easily cropped out by changing the aspect ratio to 3:2 instead of the native 4:3. Do similar mini-dome setups share this issue?

[Chris Ross]

7 hours ago, JohnC said:

Curious if anyone has tried CFWA with an Olympus 8mm F1.8 for CFWA, with either a Nauticam or Zen mini-dome? The Zen DP-100 with a 30mm extension ring is listed as the correct dome port setup from the chart, but I see the dome shade on the top and bottom of the frame. It's easily cropped out by changing the aspect ratio to 3:2 instead of the native 4:3. Do similar mini-dome setups share this issue?

I have used the Panasonic lens with the Zen DP-100 and it doesn't show the dome shade.  The Olympus with the 30mm extension should not be showing it either.  There should only be one N85 port from Zen, assume you are using the DP-100-N85 model with the Nauticam 30mm mini extension ring?  The dome shade is non removable on this one so really can't be rotated incorrectly.  Perhaps post a pic of your setup?

 

 

[JohnC]

Thanks, Chris. Yes, it is the N85 DP-100 and Nauticam 30mm ext. The lens/port position looks right to me, i.e., not too far behind or forward of the dome flange. See the attached photo of the setup and a bathtub shot showing the lens shade and corner vignetting of the dome.

[Chris Ross]