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divengolf

Member Since 26 Jun 2006
Offline Last Active Yesterday, 03:37 AM
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Posts I've Made

In Topic: How long is Vacuum stable?

Yesterday, 03:37 AM

Using Aquatica housing and Leak Sentinel, on a liveaboard, I'll set it up the night before and leave it sealed and pumped down all night. My camera battery lasts for at least 4 dives, so I only need to open the housing once a day unless I change ports, etc. But I agree, 20-30 minutes should be sufficient. I pump it down two cycles beyond the green light. Once I did have a small leak and it showed up within a few minutes, less than five.

 

Great addition to mental health diving with a camera.


In Topic: Leak Sentinel from Vivid Housings

11 September 2014 - 03:43 AM

Mine took about 8 days as I recall. To Virginia. Miso ships promptly.

In Topic: Philippine diving booking agent

09 September 2014 - 01:32 PM

I stayed at Crystal Blue a couple years ago and it was fine. I was with Scott Geitler's group and all of the arrangements were great. If you're alone or a couple, consider hiring a private guide. We used private guides and it made a big difference in finding critters.

 

Scott does 2-3 trips to Anilao each year. I plan to go back in May 2015.


In Topic: D800 Nauticam S&S YDS1 sync issue

08 September 2014 - 05:07 AM

I just tried to duplicate the problem and could not do so. Here's my setup: D7000; Aquatica housing; 2-D1s with FO connections both directly to a single FO bulkhead. Camera settings: e1(sync speed) set to 1/320 FP, e3 (flash mode) set to Manual. Using a 60 mm lens. Strobes in Manual (single flash symbol).

 

I started with 1/125, f8 and increased shutter to 1/320 f8. Then ran f-stop up to f22 in f-stop increments with shutter at 1/320. No sign of dark areas in pic.

 

Then I shifted to TTL; changed the e3 to TTL and the strobes to TTL. Left e1 at 1/320 FP. Ran the same set of shutter speeds and aperture. Same result. No dark areas.

 

Now this was done tabletop, but I cannot imagine that being in water would make any difference.

 

I have always understood that using external strobes, I was limited to 1/250 flash sync speed with the D7000. This appears to prove that incorrect.

 

Maybe I got good strobes or did something wrong????

 

Opinions?


In Topic: D800 Nauticam S&S YDS1 sync issue

04 September 2014 - 05:24 PM

Are your D1s new or used? There were a number of problems with some early production runs of the D1s. I have two that were new a few months ago and I have not had problems.

 

But it does sound like it might be a shutter speed issue.

 

Jack is an expert. Listen to him.