Overview & Features
Adjustable yellow filter for fluoro photography. The filter CF-R70-135-Y is adjustable and compatible with rectangular
ports from 54 to 105 mm wide or circular with diameter from 60 to 100
mm. The filter fits over the housing's port and
can be installed and removed during the course of the dive.
The Mangrove Underwater
Barrier Filter makes it possible to capture images of fluorescing
underwater life by blocking the light from a blue or UV excitation light
being used to provide the energy needed to initiate the fluorophore
reaction while allowing the resulting glow into your lens and camera.
- Experience FLUORODIVING! Corals and sealife contain fluorescent
proteins invisible to the naked eye.
- Use this filter along with an
excitation filter for your lights to capture this amazing effect.
Product Highlights
- For Fluorescent Fish and Coral Images
- Use with Blue or UV Excitation Light
- Blocks Blue or UV Excitation Light
- Fluorescence from Excitation can pass
Looking for something different? Tired of night diving? Fluorescence
will give you a whole new perspective on the world beneath the waves.
With our line of excitation and barrier filters, you can convert your
existing lights into a fluorescence set-up. No need to purchase
expensive specialty lights or guided dives. Be the explorer!
ABOUT FLUORESCENCE
To see this 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. Dive your favorite spots in a different light and see
what you've been missing!
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.
Fluorescence photography may
be captured during the day by experimenting with using a very powerful,
filtered light source and under-exposing the ambient light.
You know FluoDiving?
FluoDiving is diving using ultra-violett light to get the fluorescent colors of animals or plants in sea and fresh water. To
filter the blue light and let only pass the fluorescent colors you have
to use a yellow filter and you will get spectacular pictures or movies.
If you would like to see the fluorescent colors in time, we suggest to use the equivalent filters for your diving mask.
The
underwater yellow filter can be attached or detached even under water
according to the current situation. With a small snap cord, which is
included here, the yellow filter can be attached to the housing so it
will not get lost.
Fluorescence is a process that begins
with chemical compounds called fluorophores as they absorb light energy
from an outside source. Atoms and molecules within the fluorophores then
emit their own light at lower energies and wavelengths that correspond
to the original light source, making the fluorophores appear to glow.
The proteins in many fish, coral, or other underwater life contain
fluorophores, creating the opportunity for unusual or unique images.
Since blue or UV wavelengths with their relatively high energy levels
can yield the most intense fluorophore reactions, blue or UV light
sources are considered ideal for producing the most colorful and
easy-to-photograph fluorophore effects.
However, because the light from a blue
or UV lamp used to excite the atoms and molecules within the
fluorophores is more intense than the lower-energy fluorophore glow,
such lamps can end up obscuring that glow from fish or corals while
trying to photograph them. The Mangrove M67 Underwater Barrier Filter
makes it possible to capture images of fluorescing underwater life by
blocking the light from a blue or UV excitation light being used to
provide the energy needed to initiate the fluorophore reaction while
allowing the resulting glow into your lens and camera.
