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Seabed timelaps


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#1 akvaplan

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Posted 18 October 2011 - 04:55 AM

Hi

For a reseach project I need to make a one year timelaps of the sea bed under a fish farm. Water depth is 100 meters (300ft).

Camera housing and flashlights are easy to find, but the problem is how to remote-control the camera, supply power and transfer the images to the surface. (communication will from that go over a gprs modem).

Does any one have experience using 150 meters of cable?

Thanks

#2 CheungyDiver

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Posted 18 October 2011 - 05:25 PM

Hi

For a reseach project I need to make a one year timelaps of the sea bed under a fish farm. Water depth is 100 meters (300ft).

Camera housing and flashlights are easy to find, but the problem is how to remote-control the camera, supply power and transfer the images to the surface. (communication will from that go over a gprs modem).

Does any one have experience using 150 meters of cable?

Thanks



Hi akvplan

For remote control and data transfer I have used the USB and have the camera (Canon 5D MII) tethered to a computer. Power is just a surface feed min. IP68 rated cable preferably sheathed with reinforcing conduit. The USB need at lease two boosters for 100m or over.

You could PM me (info@scubacam.com.sg) if you are interested in discussing further.

Best regards


David

Proprietor of Scubacam, Singapore. Commercial videocameraman. Also shoot digital stills. I modify and built stuff. I love technology. Camera: Red Epic/ Scarlet and soon Dragon

Email: info@scubacam.com.sg

http://www.scubacam.com.sg/


#3 rtrski

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Posted 19 October 2011 - 05:53 AM

I don't know if they're still in business, or what your project budget is, but at DEMA 2009 there was an outfit that was selling complete pan/tilt/zoom webcams housed for underwater emplacements for remote internet control (cabled).

Scroll toward the bottom of the page where it says Manta Network (they were selling the cameras mostly as a funding for a conservancy effort, if I remember right):

http://wetpixel.com/...ge-insanity/P4/

There's a link there but it didn't work when I tried it. I'm at work though so if it's a redirect (personal hosting of some sort) it might be my firewall not that they're gone.

Current rig: Sony SLT-alpha55 in Ikelite housing, Sigma 105mm f2.8 DC Macro w/ Ike 5505.58 flat port or Sigma 8-16mm f/4.5-5.6 DC HSM behind UWCamStuff custom 5" mini-dome. Dual INON z240 Type IVs triggered with DS51 for TTL mimicry, or DS51 alone with home-made ringflash assy for macro.

 

Topside, unhoused: Sony SLT-alpha99, Sigma 150-500mm + 1.4TC (Saving for Sony 70-400 G2), Sigma 15mm diagonal fish, Sony 24-70mm f2.8 CZ, Tamron 180mm f2.8 Macro...all the gear and nary a clue...