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-Sven-

Member Since 28 May 2013
Offline Last Active May 08 2014 04:19 AM
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Posts I've Made

In Topic: Nauticam 3.5 versus 4.33 dome port for NA-EM5 housing

06 May 2014 - 03:56 AM

It will not vignette

I use the 3.5" dome with the NA-EM5 housing and I have vignetting with the 8mm Pana in 4:3 aspect ratio.

 

-Sven-


In Topic: Olympus OM-D E-M5

29 May 2013 - 12:35 AM

Hi,

I own an EM-5 in Nauticam housing with 12-50mm Port and I recently bought the Pana 8mm fisheye lense. Now I'm wondering whether to buy the Nauticam 3.5" wide angle port or the 4.33" dome port for that lense. Both are listed on the Nauticam port chart for the 8mm fisheye.

I know Alex Mustard's post #310 in this thread, the rubber duck in the pool with the 4.33" port looks a bit sharper to my eyes compared to the 3.5" port, especially in the corners of the frame. But lightning seems do differ, sunny with the 4.33" and cloudy with the 3.5" port, maybe different f-stops on the shots.

Has anyone compared the 3.5" and 4.33" ports with the 8mm fisheye (same f-stops) and can tell me whether corner (un)sharpness is an issue with the 3.5" port?

Thanks in advance - Sven