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Two years ago, we shared the following posting, which was triggered by my personal email to Dr. Charles Mazel of NightSea on 7 March 2014 at 16:39 CET about Visible Implant Elastomers or VIE, in which I mentioned these two links:
http://www.nmt.us/products/vie/vie.shtml
http://america.bioweb.co/products/visible-implant-elastomer-tags-vie

This in turn was in fact triggered by a customer of www.FireDiveGear.com, Valeriya Komyakova, who needed to spot, DURING DAYTIME, tiny little fish in their natural habitat, which had previously been injected with these VIE, for a research project at Melbourne University in Australia. Gladly we were able to provide her with the necessary fluo diving equipment.

Recently she sent us some pictures from her project (see attached, used with her kind permission).

See also https://vkomyakova.wordpress.com/gallery/ (scroll down - thanks a lot for the kudos!!).

Steffen Beyer via NightSea
March 14, 2014

NightSea:
Fluoro Friday #43 – Fluorescent tags for research

How do you tell one little (1 cm) starfish from another? Fluorescent tags, of course! Researchers sometimes need to mark individual animals to study their ecology and behavior, and one of the tools at their disposal is a technology called Visible Implant Elastomer. Inject a small amount of biocompatible silicone, then use the right light to make it easy to see. Read more at http://www.nightsea.com/articles/vie-starfish/.
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2016-03-28
3 Photos - View album

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"BlueBright II" a.k.a. "Lightsaber II" (see photo):

SOLD OUT at FluoMedia.org!

Now available from our cooperation partner FWT Schulz (http://www.fwt-schulz.com/tauchlampen/Fluorescence):

http://www.fwt-schulz.com/tauchlampen/GS35-LED-Blau-med-PLUS (long version, 3x C battery)

http://www.fwt-schulz.com/tauchlampen/GS35-LED-Mini_11 (mini version, 3x AAA battery)
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The near infrared imaging industry @ http://goo.gl/f8zGmi . It has been segmented by geography into North America, Europe, Asia-Pacific, and Rest of the World. North America is further segmented into the U.S., Canada, and Mexico. Europe is further segmented into Germany, France, the U.K., Spain, and Italy. In Asia-Pacific, the major countries included are China, India, Japan, Australia, and Republic of Korea.

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SPECIAL SALE:

The popular "BlueBright II" or "Lightsaber" fluo dive light (http://www.fluomedia.org/products/#bluebright) is available at 179 Euros per piece (optionally together with one or two standard mask filters at the heavily discounted price of 25 Euros each, instead of normally 35 Euros) AS LONG AS STOCKS LAST (3 down - 3 torches left)!

After that the price per torch will go up to (currently) 184 Euros, and the mask filters to 35 Euros. Moreover torches and filters will no longer be available in one package, but from two separate vendors (meaning increased shipping costs).
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SPECIAL SALE:

The popular "BlueBright II" or "Lightsaber" fluo dive light (http://www.fluomedia.org/products/#bluebright) is available at 179 Euros per piece (optionally together with one or two standard mask filters at the heavily discounted price of 25 Euros each, instead of normally 35 Euros) AS LONG AS STOCKS LAST (6 torches left)!

After that the price per torch will go up to (currently) 184 Euros, and the mask filters to 35 Euros. Moreover torches and filters will no longer be available in one package, but from two separate vendors (meaning increased shipping costs).
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SPECIAL SALE:

"Mini BlueFlame" blue light fluorescence torch based on Tovatec/Intova iMini

Features the smallest body size of any Tovatec/Intova torch and the widest angle beam. The extreme wide angle makes this light popular for video and photo applications. Waterproof to 400 ft / 122 m, two of these lights in a Stay Slim Bracket provide great low cost underwater video lighting options. Easy to reach tail switch and double O-ring design provide worry free underwater operation.

Emitter: Blue high-power Cree LED with internal blue-pass dichroic excitation filter

LED lifetime: 100,000 hours

Batteries: 2 x CR123A (not included)

Burn Time: 5 hours

Variable Power: Full/30%/strobe

Switch: Magnetic/tail

Material: Aluminum

Depth rating: 400ft/122m

Video Option: Yes

Beam angle: 53 degrees

Dimensions: 4.9 in / 12.5 cm L x 1.4 in / 3.6 cm W

Weight: 6.5 oz / 185 g (with batteries)

See some beamshot photos: http://www.fluomedia.org/products/beamshots/table/#6

Special offer: $119.00 (instead of $169.00) plus shipping

WHERE TO BUY: http://firedivegear.com/product/mini-blueflame/ (USA)

CONTACT TO ORDER: Lynn Miner <firedivegear@gmail.com>
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2016-02-24
2 Photos - View album

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TV suggestion:

One of Germany's most popular TV channels, ProSieben, is airing a prime time show (in German) about the 50 most spectacular images worldwide and their background stories, see http://www.prosieben.de/tv/galileo-big-pictures.

Among these will be an excerpt of my video about underwater fluorescence https://www.youtube.com/watch?v=4V9TCdCbX6U:

Saturday 6th February 2016 at 20:15 h:
ProSieben: Galileo Big Pictures - Giganten

See e.g. www.FluoPedia.org/publications/ and www.FluoMedia.org/science/ for more information about underwater (bio-) fluorescence.
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Fernsehtipp:

Samstag 06.02.2016 20.15 Uhr auf ProSieben:
Galileo Big Pictures - Giganten

http://www.prosieben.de/tv/galileo-big-pictures

Es werden die 50 spektakulärsten Bilder weltweit und ihre Hintergrundstories gezeigt, dabei geht es unter anderem um Unterwasserfluoreszenz (mehr Informationen hierzu siehe z.B. unter www.FluoPedia.org/publications/ sowie www.FluoMedia.org/science/).

In dieser Sendung wird ein Ausschnitt meines Videos https://www.youtube.com/watch?v=4V9TCdCbX6U gezeigt.
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Why it makes no sense to indicate "Lumens" of blue or UV light torches for fluo diving:

"Lumen" is a measure of how much light the human eye will perceive, weighted according to the specific sensitivity of the human eye to different wavelengths of light (see also https://en.wikipedia.org/wiki/Lumen_(unit))

The light of our blue (or UV) light torches however is not meant to eventually reach the human eye, on the contrary, the blue light is meant to be filtered out by the yellow mask and camera filters (true UV light < 400 nm is invisible anyway). Instead, it is meant to pump energy into the fluorescent pigments of the underwater organisms of interest, so the most appropriate measure for our torches is the light energy or "radiant flux" they emit.

What reaches the human eye (or the camera) is the fluorescent light emitted by the fluorescent pigments, whose efficiency in doing so (for any given amount of light energy absorbed) varies greatly depending on the organism (and the pigment) in question.
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