|Four elements, 17 mm lens with automatic
focus and automatic diaphragm, ranges between f/3 and
f/12, with a vertical viewing angle of 140° and a
horizontal viewing angle of 180°, with built-in lens
shade and internal color correction.
gone but not forgotten!
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This RingSurf Underwater Photo Ring Site
owned by Photoceania.
This page is currently under construction. It will include links and articles on
technical subjects, pertaining photography & diving technique