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CheungyDiver

Member Since 26 Nov 2002
Offline Last Active Today, 10:32 PM
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#329787 Nauticam Rossa for Red Epic/Scarlet

Posted by CheungyDiver on 15 April 2013 - 05:49 PM

I have been testing the Nauticam Rossa in Lembeh Straits recently. Too busy to do a full review but will later. Probably after the ADEX show.

 

Here are some teasers.

 

 

LemRossa1.jpg

 

Not the best visibility at the time. The housing is well balanced. The slider weight at the bottom helps to adjust the centre of gravity of the housing. The finger tip controls are a joy to use. In this case I could balance the housing on the legs. I attached two ball arms in front in case I need more stability. Two more at the back and you have a quad-pods that could be made stable in any situation.

 

With the Nikon 105 VR macro it is more like 147mm macro. S35 sensor has a crop factor of approx 1.4 with FF lenses. I was surprised to see the size of the image on the screen. Great working distance too.

 

cheers

 

David

 

LemRossa2.jpg




#329756 Blackmagic Cinema/Professional 4k Camera housings

Posted by CheungyDiver on 15 April 2013 - 04:47 AM

Thanks Davide.

 

Mystery solved. For stupid me.

 

So no excuse for other manufacturers then.....LOL




#328395 New Housing "Airlock" Vacuum from Backscatter

Posted by CheungyDiver on 23 March 2013 - 03:10 AM

The hand vacuum pump has a pressure gauge. Its similar to Backscatter and  Sentrythingy....

 

yes you check if the gauge and see if vacuum dips or not. Used this method since 1993.

 

Zero flood.

 

regards

 

David




#327046 New Housing "Airlock" Vacuum from Backscatter

Posted by CheungyDiver on 03 March 2013 - 12:31 AM

Gates housing vacuum check system uses the same valve. Gates uses a battery powered pump. This system has been around for a long time for high end video housings. I have my own version for DSLR for over 8 years on request from customers. Not one had serious problems. No electronic is a plus. The pump with the gauge is all you need. It is only partial vacuum like -0.5 bars which simulates about 5m depth. User could either leave vacuum in or purge it. Very unusual to have a sudden o-ring seal failure when the housing is under equal hydrostatic pressure from the water column. Unless user decide to whack the port on a rock. I had over 8 years and more than 60 people with these vacuum valves for both DLSR or video housings. I know they work. Keep it simple. Electronic only adds more stress.  The seal is checked on land and if seal is not working then the gauge will drop. Sort out the o-rings and then check again. O-ring either fail or working. They don't just decide to fail halfway. Anyway Backscatter version looks simple enough. Its the way to go for peace of mind.

 

Cheers


David




#316579 Panasonic GH3 is (almost) here

Posted by CheungyDiver on 17 September 2012 - 03:46 AM

CineGH2.jpg GH2 housing will not fit the new GH3 from the look of it. Its much bigger so Nauticam and others will need a to develop a new one.This UW imaging lark is getting exhausting with new cameras coming out every few months. Then people expect the housing to be available almost immediately......and then they want to sell their old housing....and so on.Change of topic I am making something for this puppy. For video. It needs a nice tube and nice AF coated glass port.Got one glass port done for Peter but his is a XF canon.Watch this space.CheersD


#284109 Seahorn snoot with Inon Z240

Posted by CheungyDiver on 09 June 2011 - 12:58 AM

Are there any fibre optic snoots commercially available?

/Bent C



Yup. I am making a batch.

Just PM me if you are interested. info@scubacam.com.sg

Go to the site here if you need to know more: http://www.scubacam.com.sg/blog/


Cheers

David