View Full Version : Underwater Magnifying Glass
ScubaJorgen
February 16th, 2002, 04:32 AM
A clever friend of mine :doctor: developed a Underwater Magnifying Glass . See the Underwater Magnifying Glass homepage (http://home.hetnet.nl/~JS.Schulte).
Normal magnifying glasses do not work underwater :nono:, since the refraction index of glass is almost equal to the refraction index of water. Magnifying power is lost.
My friend found a solution :hehe: and now makes and sells these magnifying glasses. Here a lot of my diving association members use the glass for studying underwater life on the square inch. It works well.
Does anybody have seen similar developments? :confused:
Uncle Pug
February 16th, 2002, 04:28 PM
Hmmmm...
So that is why my magnifier doesn't work so good!
:D
Where do I get one...
scubabunny
February 17th, 2002, 12:01 AM
Cool! A friend of mine has a magnifier of sorts...a $10,000 camera set up with a macro lens!! Think this is more my style!
Any idea of the cost and if its available in the US?
blacknet
February 17th, 2002, 12:34 AM
Hello,
OK someone please tell me the practical purpose of a glass u/w?
Ed
Uncle Pug
February 17th, 2002, 12:53 AM
Originally posted by blacknet
Hello,
OK someone please tell me the practical purpose of a glass u/w?
Ed
Focusing sunlight to start leaves on fire wouldn't be one of them...
But I think it would be great for looking at small things...
:D
ScubaJorgen
February 17th, 2002, 12:18 PM
The Magnifying Glass costs 90 euro dollar. I think a Euro dollar costs here 88 US :patriot: dollar cents. So the costs of the glass will be around US$ 78. Please contact Jos Schulte. See his site (http://home.hetnet.nl/~JS.Schulte) for e-mail address, etc.
Local diving here in the Netherlands often take place with only a few meters visibility. This automatically leads to focussing on things nearby. We've got a number of biologists in our diving association. They tend to look at insects and small plants as well. Recently one of those guys discovered a new plant. They're very fond of the magnifying glass :) .
scubabunny
February 18th, 2002, 06:05 AM
I've seen pics that people have taken with macro lenses, and they are fascinating! A guy at work took a pic of fish eggs..and you could see the little eyes and bodies in each egg! I know a magnifying glass probably won't have the same magnification...but I like to concentrate on the little things that most people miss..especially at night.
Out of curiosity..what is the magnification with this?
Jonathan
February 18th, 2002, 10:03 PM
I saw a diver with a magnifying glass in Atami (Isu Penisular, Japan) last weekend - it was not one of your friends though so I guess he's not alone......
Jonathan
blacknet
February 18th, 2002, 10:05 PM
Hello,
I think a 50mm macro lens should work ok.
Ed
NetDoc
February 18th, 2002, 11:58 PM
Everyone knows that won't work, unless you get water proof leaves...
Chillywill
February 19th, 2002, 03:56 PM
Hey thats niffty
Chillywill
sheck33
May 20th, 2003, 06:14 PM
ScubaJorgen once bubbled...
The Magnifying Glass costs 90 euro dollar. I think a Euro dollar costs here 88 US :patriot: dollar cents. So the costs of the glass will be around US$ 78. Please contact Jos Schulte. See his site (http://home.hetnet.nl/~JS.Schulte) for e-mail address, etc.
Local diving here in the Netherlands often take place with only a few meters visibility. This automatically leads to focussing on things nearby. We've got a number of biologists in our diving association. They tend to look at insects and small plants as well. Recently one of those guys discovered a new plant. They're very fond of the magnifying glass :) .
whats a 'euro dollar':confused:
I know of Euro's, the stupid currency forced down the people's throats, and Dollars, generally used in the US, but Eurodollars :confused: :D
annie
May 30th, 2003, 05:55 AM
A DM used one to show me a pygmy seahorse in a gorgonian fan in Tulumben Bali last October - those things are so small they should be called microscopic seahorses.
raviepoo
May 30th, 2003, 06:55 AM
....to see tiny things like blennys and gobys. It doe provide a bit of magnification. It drives my boyfriend crazy.
WVMike
May 30th, 2003, 07:15 AM
Well, I got the 2.5 diopters bifocal style in my mask , but still have some trouble with console and compass bearings, especially in low vis.
Can see great at a distance.
Would this help me read my instruments?
If so, I am in.