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Beam angle for underwater


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#1 Jaco Jansen

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Posted 13 June 2007 - 02:21 AM

Hi all
I'm shooting an underwater 'mermaid' sequence soon. Planning to light using 2.5K HMI's from an angle outside a 5m deep pool. The backround will be blacked out, and I will flag the lightspill on it hoping to render the background as a black & empty void. Any pointers regarding HMI beam angles for effective penetration into the water? Im trying to achieve something like the atached frame..
Thanx

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#2 Ken Minehan

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Posted 13 June 2007 - 02:47 AM

Hi, I did something like this before in a Navy Divers pool where they do scuba diving training. if i remember correctly the pool was of similar depth. We used a 2.5k HMI PAR. and punched it right on to the subject scuba diving near the bottom of the pool. The floor of the pool was light blue, so we got a little bit of bounce of the floor of the pool too. We were shooting with a digital Beta (roughly at 250 ASA).

regards
Ken minehan
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#3 robert duke

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Posted 13 June 2007 - 11:48 PM

I think I saw the setup for this. I believe they used 6 underwater pars (1200's) from underneath. It was shot at ?fantasea? stage pool in LA. Check out the sea par web sites.
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#4 robert duke

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Posted 13 June 2007 - 11:52 PM

Check out the Hydroflex website. some really cool sh***T
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Paralinx LLC

Abel Cine

rebotnix Technologies

Gamma Ray Digital Inc

Visual Products

The Slider

CineTape

Willys Widgets

Wooden Camera

Aerial Filmworks

Tai Audio

FJS International, LLC

Broadcast Solutions Inc

Ritter Battery

Technodolly

Opal

Glidecam

Metropolis Post

CineLab

Media Blackout - Custom Cables and AKS