Jump to content


and178schwarz

Member Since 24 Mar 2011
Offline Last Active Jan 17 2015 04:47 PM
-----

#346581 Leak Sentinel from Vivid Housings

Posted by and178schwarz on 22 April 2014 - 03:25 AM

Just to clarify:

I do not recommend or would do the preparation of the housing itself in any other environment then a quiet and dry place where you can put the required attention on maintaining O-Rings etc.

The only thing I have "outsourced" was the depresurization of the housing - so when the equipment has reached ambient temperature.

As the housing is closed and setup no outside humid air can get inside - so the risk of condensation is minimal. To be sure I usually place a pack of silica-gel below the camera.




#346517 Leak Sentinel from Vivid Housings

Posted by and178schwarz on 20 April 2014 - 10:55 PM

Just coming back from a 2 week trip to Maldives using the Leak Sentinel V3 on the Na-EM5.

Experience with minor flaws had been outstanding. It was giving me a lot of confidence pre and during diving the usual maintain, dip and hope methods never could achieve.

Some recommendation or tips for those of you considering I can make.

Putting under pressure on in AC cooled hotel rooms and then going out into the hot can easily generate false positives. So after the first day I brought the pump to the diving vessel and applied pressure around 20 minutes before diving while travelling to the dive site. Then shortly before jumping I checked the status. This way I never had a false alarm.

When releasing under pressure you need to be VERY carefull, especially when diving salt water, the pressure valve and its surroundings is dry as well as your fingers. The electronic board is just underneath the valve. It happened to me that one tiny drop got sucked in with the air, This caused the sentinel to not work anymore. To repair (and I would not necesarily recommend the same) I opened the Sentienl housing, took out the circuit board, removed the battery, dripped the board into drinking water for about half an hour to loosen the corrosion (shown as white markings at the soldering points) and then used a tooth brush to carefully clean the remaining dirt. Finally I dried it in the sun before puzzling everything together again. After the device was back to working properly but I think I just had been lucky in this case.

If the vendor reads this I would recommend to use an electronics varnish leaving out the tiny sensor to prevent the same in future versions.




#329528 New to underwater photography

Posted by and178schwarz on 10 April 2013 - 02:37 PM

Hi all.

 

I fairly new to underwater imaging. Just finished my 2nd trip using a Sony NEX 5 in Nauticam.

I would like to get some opinions on the shots I took on my very first foto trip in 2011.

 

_DSC1625-L.jpg

Keep smiling, Dragonhead, Sony NEX-5 18-55mm at 55, single Inon S-2000.

_DSC1904-L.jpg

Directional advice, Boxer-shrimp, sony NEX-5 18-55mm@55 + Inon UCL165, single S-2000

_DSC1770-L.jpg

Hangtime, divers at safety stop, Sony NEX-5 16mm+VCL-ECF, available light.

_DSC1924-L.jpg

Approaching Dolphins, Sony NEX-5 16mm + VCL-ECF, available light

_DSC1932-L.jpg

Dolphins, NEX-5 16mm + VCL-ECF, available light.

 

Thanks for comments in advance.

 

Andy.