Ikelite Yellow Barrier Filter for DSLR Flat Ports 

Ikelite' Yellow Barrier Filter will give you a whole new perspective on the world beneath the waves. When used with theirline of excitation filters, you can convert your existing lights into a flourescent set-up. No need to purchase expensive speciatly lights or guided dives. 

Shooting With Flourescence:

To see the results of flourescent lighting underwater, you'll need a light with an "excitation filter" attached AND "barrier filters" attached to both your mask and camera system. What you'll generally see is a glow emitted from a variety of corals and animals, mostly in greens, blues, and reds. You may find two of the same type of corals—one which fluoresces, and one which doesn't.

Fluorescence is technically the photon emitted as an electron relaxes from its excited state to its ground state. In layman's terms, it's the glowing you are familiar with in glow sticks, jellyfish, and forensics. A variety of organisms and materials above and below water exhibit fluorescence—often with the introduction of a particular wavelength of light.

Filter Compatibility:

This filter is usable on Ikelite Modular Flat Ports and Fixed Length Flat ports. Filters for Dome Ports are not currently available. Fits DSLR flat ports and can be removed and replaced underwater. 

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