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infrared under water (Read 480 times)
*United States Minor Outlying IslandsOffline
Posts: 3226
Please don't yell !

Posted Apr 09, 2009, 01:44:12 PM
Anyone know anything about infrared underwater ? I wanna use infrared goggles with infrared lighting for some photography. Thanks in advance if anyone knows anything about it.  Tongue

*United StatesOffline
Posts: 26
LaPlace Louisiana
Detector used:
Garrett GTI 2500, ACE 250

Reply To This Topic #1 Posted Sep 05, 2009, 05:28:45 AM
I received my Master's in Remote Sensing and the infrared spectrum barely penetrates water.
Infrared doesn't travel any distance through water. Now blue-green will travel a lot farther through water.   
*MexicoOffline
Posts: 6501
Alamos,Sonora,Mexico

Reply To This Topic #2 Posted Sep 05, 2009, 06:26:43 AM
HI:  Obviously nfunk knows what he is talking about.   My suggestion is to remember what IR is and it's freq. range.  Then remember that H2O is used to quench it, i.e. put out the fire, cool the engine  etc.,

Of course much would be depend upon what you intend to use it for?  Specialized close up photography ?

Don Jose de La Mancha

An Explorer of History in North Western Mexico
Pirate of the Martires
*United StatesOffline
Posts: 1491
Pinellas Park, Florida
Detector used:
Aquapulse, J.W. Fisher Proton 3

Reply To This Topic #3 Posted Sep 05, 2009, 04:51:18 PM
My Seaview camera is an infared camera. It cuts right through murky wayet and has no backscatter from the infared lights. http://store.seaview.com/catalog/product_info.php?products_id=60&osCsid=d36a329d1220c48471df9a9eafd8da31.

Preserving Maritime History for Future Generations
*United StatesOffline
Posts: 439
Maine

Reply To This Topic #4 Posted Sep 24, 2009, 11:00:23 AM
I received my Master's in Remote Sensing and the infrared spectrum barely penetrates water.
Infrared doesn't travel any distance through water. Now blue-green will travel a lot farther through water.   

 Hi nfun,

 i am intrigued, by your comment on having a masters in remote sensing, in what context or scope does that degree encompass ?. as that could cover soo many different types of targets (metals,military,people,planets,etc.), equipment or methods, scale or to what degree (nano-freq-thermal, UHF,VHF, PI, spectrum) ?,

 there is a reason that i'm asking... but... i won't bother going into details just yet. but given the site we are on i'm assuming that you had your eye's set on metal or treasure sensing capabilities  Wink

  i also noted that you have a plane as your avatar, could that be your working platform ?.
*United StatesOffline
Posts: 26
LaPlace Louisiana
Detector used:
Garrett GTI 2500, ACE 250

Reply To This Topic #5 Posted Nov 15, 2009, 09:52:03 AM
Lobsterman,

My Master's is in Geography, but the vast majority of my work have been remote sensing of water, specifically HABS (hazardous algae blooms).  When I say remote sensing it encompasses multispectral and hyperspectral satellite imagery (MODIS, LANDSAT, SeaWIFS, ASTER, etc) low altitude hyperspectral imagery (AVIRIS flown on the U2, TR2 aircraft)with in situ water quality analysis.  The spectrum includes very long IR (thermal) through the ultraviolet and includes microwave (radar).

 In this context infrared spectrum penetrates only centimeters while the blue green spectrum can penetrate many meters.

As for the plane, yes it is a Piper Cherokee 180 which is mine.




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