Jump to content


Member Since 15 Sep 2011
Offline Last Active Nov 07 2017 05:58 AM

Posts I've Made

In Topic: Indian Springs - 15,000 lumen light trials

14 March 2014 - 09:52 AM

Here is some additional footage of the lights from another cave system.  This was shot the day before and was our first use of the lights.  Darker walls and more fine sediment in the water...





In Topic: Indian Springs - 15,000 lumen light trials

14 March 2014 - 09:42 AM

I take it these are the lights?  http://www.bhphotovi...geable_led.html


Yes, those are the ones being used off-camera by the other diver.  We are going to work on a syntactic foam collar for these big lights as they are just too heavy (i.e., -2 pounds each) to effectively extend on arms. 

We ran burn tests and got 69 minutes on full before the LED blinked red (approximately 5 minutes battery life left), so a little bit more than the stated specs.

In Topic: Indian Springs - 15,000 lumen light trials

11 March 2014 - 06:59 PM

Nice Video Mike!


How where the lamps distrubuted?

What had th diver in both hands?

What lamps did you used on the camera?


A test under daylight conditions would be interesting for non cave divers!


Thanks for posting!



Information on the lights used can be seen at the end of the clip.  Two 2500 lumen video lights were used on camera and two 15000 lumen lights were held by the other diver off camera.

We plan to shoot additional footage under different conditions, including open water coral reef and the like....



In Topic: Grumman Hellcat off Miami, Florida

17 September 2013 - 12:55 PM

It looks like the props aren't bent - if that's the case, they weren't turning when the plane hit the water.


What gas mixtures and what was the dive plan?


Yeah, and the wheels are obviously up and flaps extended.  Odds are the guy survived the ordeal.


Diving 10/50 diluent - had planned for a short 20 minute bottom time but conditions were so nice it was closer to 30...total run time was 90 minutes.




In Topic: Gopro Hero3 vs Hero2

14 March 2013 - 07:46 PM

I was shooting in 1080 60fps mode, and approximately 45 minutes of footage is about 11GB.  So, yes, you will eat up some memory in a hurry, especially if you use any of the higher-resolution modes.


I am including a link to some footage from my first dive with the mounted GoPro to give you an idea of how it worked out.  It was on a ball mount on top of my camera housing connected to another ball mount threaded into a tripod mount on the GoPro to clear the sync cords and also allows me to lay it flat when I have the strobe arms folded and stowed.  The FOV of the GoPro is less than the FOV of the 15mm FE I was shooting with on this particular dive.  I just need to angle it down a few degrees, particularly when shooting things up close.  The constant moving as I check the LCD screen, adjust strobe arms, and strobe power settings while shooting stills is pretty obvious, not to mention all the strobes going off...but I think it definitely can come in handy on some dives...