Nightsea blue light | Okinawa Nature Photography

” Fluorescence is the absorption of electromagnetic radiation (light) at one wavelength and its re-emission at another, longer wavelength ” Dr Charles Mazel. I attached a link to his website at the bottom of the page for more info.

In order to photograph fluorescence you will need a excitation source (blue light), barrier filter and a camera.

Shawn Miller fluorescence setup

Underwater equipment used – Night dive at Kadena north, Okinawa.

Canon 70d * Canon 100macro lens
Ikelite underwater housing
2 x Light&Motion Sola Nightsea blue lights
1 Light & Motion Sola 1200 red * 1 Sola 3800
Light&Motion barrier filter and mask

Some of my favorite photographs from our night dive with the crew

True underwater fluorescence © Shawn Miller

Palythoa heliodiscus under blue light © Shawn Miller

True underwater fluorescence © Shawn Miller

* Please check out my older posts on Fluoro-diving, Capturing fluorescence and Fluoro fingerprinting

* Learn more about fluorescence with Dr Charles Mazel https://www.nightsea.com/

**Light&Motion Dive lights https://www.lightandmotion.com/choose-your-light/sola

Have a great day!

Nudibranchs are shell-less gastropods. They are some of the most bizarre-looking underwater animals found in our oceans. They can be challenging to find due to their small size and confusing patterns. Nudibranchs are slow-moving, delicate and lack a protective shell. Some are extremely distasteful and bright colors warn predators that they are toxic. Some even have the ability to ingest stinging cells and use them as a form of protection.

The best way to find sea slugs: Move slow! Search around sponges, hydroids, sea squirts, anemones, soft coral, rocks and reef ledges.

Train the eye: They can be challenging to find, I recommend tagging along with experienced divers that already have an eye for finding them.

Below are some of my favorite images of sea slugs. Photography by Shawn M Miller.

Chromodoris willani © Shawn Miller

Phestilla melanobranchis© Shawn Miller

Phyllidia varicosa© Shawn Miller

Roboasta gracillis© Shawn Miller

Chromodoris aureopurpurea© Shawn Miller

Aldisa albatrossae© Shawn Miller

Tritonospsilla alba© Shawn Miller

Learn more about the beautiful sea slugs of Okinawa. Check out Dr. Bolland’s Website!

My Mission: To Document and Preserve the Wildlife of the Ryukyu Islands

This site is also designed to help people identify the beautiful animals of Okinawa, basically to serve as an online nature reference guide. If you would like to make a contribution to support my mission, please click on the donation link paypal.me/maketheswitch4nature

Your donations will help conservation initiatives as well as bring solutions to the worldwide pollution issues on our beautiful shorelines. Thank you for your support, Shawn M Miller.

#MakeTheSwitch4Nature

Okinawa Nature Photography

沖縄自然写真 By Shawn Miller

Tag Archives: Nightsea blue light

True Fluorescence – Underwater photography by Shawn Miller

Nudibranchs – Colorful sea slugs of Okinawa