Fantasea Big Eye Lens Underwater Wide Angle Lens for all Fantasea F-series HousingsThe BigEye Lens F Series is Patented Wide Angle Lens for the Fantasea FG16, FG15, FP7100 and FP7000 Housings (for Canon PowerShot G16, Powershot G15, Nikon Coolpix P7100 & Nikon Coolpix P7000), which fits over the housing port and can be installed and removed during ..