Fantasea Line M67 Mark II BigEye Lens - Manual (Page 2)

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1. Introduction
The Fantasea BigEye Lens M67 Mark II is a patented “wet” accessory wide angle lens
that fits onto the housing 67mm lens port thread and can be installed and removed
during the course of the dive. It is perfect for photographing seascapes, divers, ship
wrecks and schools of fish without moving further away from the subject, thereby
still taking full advantage of water clarity and artificial light sources.
The BigEye Lens M67 Mark II can be mounted directly on top of 67mm threaded
housing lens ports or on top of lens ports featuring a different thread, by using a
compatible adaptor.
2. Technology
The BigEye Lens M67 Mark II makes use of a new patented lens technology, which
allows for high quality underwater wide angle images free of distortions. The new
technology uses air instead of glass as an optical element and enables recovering
100% of the camera lens optical properties that would normally be lost underwater.
The air pocket inside the lens enhances the angle of light refraction, thereby
restoring the original angle of coverage of the camera lens (see figures below). This
patented technology was specially designed for underwater photography and
therefore the lens should only be used when the system is submerged in water.