GoPro Cavern dive question

[jmneill]

Ok here it is: Just got the Hero 2 with GoPro's dive housing. I will be doing my first dive with it this weekend. Dive will be near 100' in cavern environment, and all light will be coming from two 600 Lumen Trustfire torches mounted with the Go Pro on the Mako AR15 pistol grip gig. The question is what setting is reccommended for this application? I see the manual says to turn on the "spot meter" setting when "filming from a dark setting into a brighter setting". Does this qualify?
Thanks in advance!

EDIT: I just tried making a video in the dark (above water) with the above setup, and when filming anything closer that ten feet the inner 1' radius was completely bleached out by the light. Possible too much light and should consider going to medium or dim settings on the torches while in the drink?

 

[JTemple]

Try spreading your lights and directing them outwards a bit so that the inside edges of the beams just "kiss" each other lightly and don't overlap.

 

[cascas]

Sounds like your lights have narrow beams instead of wide angle. Your camera is wide angle, you should use flood lights instead of spot lights.


These Trustfire torches are tactical lights, their lightbeams are way too narrow for a GoPro...

 

[jmneill]

Try spreading your lights and directing them outwards a bit so that the inside edges of the beams just "kiss" each other lightly and don't overlap.

I'll give that a shot. Thanks for the advice.

---------- Post Merged at 08:44 AM ---------- Previous Post was at 08:35 AM ----------

Sounds like your lights have narrow beams instead of wide angle. Your camera is wide angle, you should use flood lights instead of spot lights.


These Trustfire torches are tactical lights, their lightbeams are way too narrow for a GoPro...

Yea, they are fairly narrow beams, although not nearly as narrow as my Intova torches. Any suggestions for this Mako setup? Or did I just start out with a BS platform and need to go back to the drawing board

d?

 

[3D diver]

Here's the diffuser I'm experimenting with:

Basically a piece of flourescent light diffuser cut into a disk and held in place by a bit of bicycle tire inner tube.

 

[jmneill]

Here's the diffuser I'm experimenting with:

Basically a piece of flourescent light diffuser cut into a disk and held in place by a bit of bicycle tire inner tube.

Very interesting. Maybe I can throw something together and give it a dive tomarrow.

---------- Post Merged at 06:28 PM ---------- Previous Post was at 03:18 PM ----------

Here's the diffuser I'm experimenting with:

Basically a piece of flourescent light diffuser cut into a disk and held in place by a bit of bicycle tire inner tube.

Well, the garage light is now missing a diffuser but maybe I'll get some usable footage of tomarrow's dive. Took your method, but didn't have a bicycle tube laying around, so I went a little more precision and used just a tiny bit of what will (hopefully) be easy to remove silicone glue. Have you tried yours yet?

 

[3D diver]

That looks really good.

I thought about silicone glue, but haven't settled on this diffuser yet. I dove with a similar diffuser on another, weaker light. I'm going tomorrow with the rig shown above on a 1000 lumin DRIS light. A second light is scheduled for delivery Monday.

Here's a link to my thread:

http://www.scubaboard.com/forums/gopro-video/425784-my-gopro-3d-setup.html

 

[ouscubagrad]

how were your results????

 

[jmneill]

how were your results????

Ok, for my first vid, but it looks like I'm gonna have drop coin for something more purpose built. The diffusers just couldn't override the torches inherent design.
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