Fantasea BigEye Lens FXF100 Operator's Manual - page 2
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1. Introduction
The Fantasea BigEye Lens FXF80/100/200 is a patented “wet” accessory wide
angle lens that was specially designed for the FujiFilm WP-FXF80, WP-FXF100
and WP-FXF200 underwater camera housings. The lens fits onto the housing
lens port 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.
2. Technology
The BigEye Lens FXF80/100/200 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.