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oskar

Member Since 10 Jan 2007
Offline Last Active Jul 17 2014 05:35 AM
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Posts I've Made

In Topic: OMD EM5 blacks out after repeated shots

30 June 2014 - 11:05 AM

I tend to agree. I can repeat the problem by pumping down the pressure, and then reverse by releasing the pressure again.

 

This makes me think there's no issues with the batteries.   I cannot test actual diving for a longer while alas.  If i could, i could test diving without any under pressure in the housing to see what difference that would make.  

 

IF the problem is a too soft button that pushes down by pressure, however the effect of the water pushing the buttons should soon overshadow the effect of the vacuum pump and give the same result.

 

For now, the main culprit must be assumed to be a misalignment or bad button.

 

I think i have to do what you suggests, okuma, however I don't know how to check the button play when the housing is closed.  I would very much appreciate suggestion for this.  How about you Nauticam dealers, how do you analyze issues like this?

 

Cheers/O

 

 

My wag  (wild ass guess) is that under vacuum/depth pressure there is an applied force/torque being applied to your camera body.

After pumping down and at depth can you verify that there is a slight clearance between all invividual controls and the camera body?


In Topic: Leak Sentinel from Vivid Housings

29 June 2014 - 12:29 PM

I have a crazy issue with my leak sentinel on a Nauticam housing for Olympus OM-D E-M5.

 

My camera malfunctions when pumping the pressure down to green flashing.

 

See my thread here for details: http://wetpixel.com/...showtopic=53344

 

This seems crazy to me, do i have the only pressure sensitive E-M5,  is this a result of some too lose buttons?

 

 

Any ideas?

 

Cheers/O


In Topic: OMD EM5 blacks out after repeated shots

29 June 2014 - 12:24 PM

Two dives today where I repeated the problem on both dives. This brought some more leads. The issue is this:

 

The camera shuts down after sometimes one, but most often repeated shots, at second or third shot in a series.

 

This happens:

 

I take the shot, the rear screen momentarily blacks out, as usual, but instead of showing preview of the shot taken (i've set to 2sec)  The camera flashes the "IS1" symbol red on the right side. Blacks out again and shuts down.

 

In order to get started again, I have to cycle the camera on-off again.

 

This happened frequently on both dives today. The housing was not opened between dives.  Most shots taken with manual flash 1/64s (to trigger external strobes with fibre) all in M mode  with 8m fisheye at 800Iso  and f3.5-6  s at 1/20-1/200.

 

Conditions:

Fine, water temp from 13-9 degrees centigrade. surface temp about 17 degree centigrade. 2h between dives.  Depth 9-30m

 

At home, I opened the housing and tried the camera with the same set-up.  The issue does not repeat with the camera outside of the housing!!!

 

Analysis?

 

I initially though that the camera image stabilisation is broken, however it works a charm on land.  What can be the issue?

 

I can only conclude that there must be something wrong with the Nauticam housing?!?  

 

Issue:  Does not like vacuum!!!!

 

Finally I tried to seal the hosing again. No issues.  But when activating the vivid housing leak detector, and pumping it to flash green, the problem comes back.  And it is repeatable!

 

So, what on erth is this, is really my camera individual pressure sensitive, or could this be a function of one or several stuck buttons? Any ideas for finding out?

 

Cheers/O


In Topic: OM-D EM-5 Nauticam with 9-18 zuiko?

22 June 2014 - 03:40 PM

I sure understand! If you have been photographing any subjects with subjects filling both the middle of the frame an some parts of the peripheri, that could reveal some difference, right?

 

/O

 

 

I've been shooting with the +2 diopter permanently attached since I did my test. I'm pretty sure I'm getting better technical quality on my pictures now, although I haven' done any systematic comparison. There's just too many variables to do a reliable comparison in the wild.

--
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In Topic: Leak Sentinel from Vivid Housings

22 June 2014 - 03:33 PM

I've bought it for my NA EM-5 housing and installed it myself.  I have dived it a week in arctic conditions (really, but arctic summer!).

 

It has worked great so far. Easy to install and no battery changes so far.  No problem in cold water conditions 4-5 degrees centigrade.  I would recommend it to anyone so far.

 

My eyes are tricked by the color though, the intense green light color conditions in the waters I was diving made the green flash LED seem orange.  For the next version I would recommend a distinctly different flash pattern so one does not have to think about the color.

 

Cheers

/O

 

 

Sam - Get the version for the accessory port (M16 mount), which is at the top of the housing next to the zoom knob. Unscrew the plug with a coin. Put a little silicon grease on the o-ring. Screw in the Leak Sentinel. It couldn't be easier.  

 

Oskar - Installed, it looks exactly like the second photo on page 1 of this thread.  See also the first photo on page 1 of this thread for construction details. I don't think you need to worry about "shearing" anything