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Date: Tue, 07 Nov 95 16:53:38 EST
From: "Anthony Martinez" <Anthony_Martinez@cc*.ss*.nm*.go*>
To: loseru@je*.fi*.gs*.co*
Cc: techdiver@terra.net
Subject: Re: Nikonos 5

> Does anybody have experience in taking a Nikonos 5 deeper than the rated 50 
> meter for extended period of time (20-30 minutes)?
     
The Nikonos V is good to about 67m, provided you take care of the 
camera. All o-rings (including rewind and advance shaft) must be in 
good condition, properly lubricated, and properly seated. Do not 
over lubricate the o-rings, the purpose of lubrication is to allow 
the o-ring to seat properly and distort freely. 

Past 67m the  Nikonos V has problems with the pressure. I've had 
mine as deep as 80m for 25 minutes, but at that depth I was only 
able to expose one frame and then the camera would not advance the 
film easily. It did not leak, but it must have been very close to 
its limits. - Tony

p.s. As always, be prepared emotionally and financially for a        
     flooded camera.

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