Fantasea Line M46 BigEye Lens - Manual (Page 2)

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1. Introduction
The Fantasea BigEye Lens M46 is a patented “wet” accessory wide angle lens
that fits onto the housing 46mm 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 - M46 can be mounted directly on top
of 46mm threaded housing lens ports or on top of lens ports featuring a
different thread, by using a compatible adaptor.
2. Technology
The BigEye Lens M46 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.