B005GL4XHO Opteka Platinum Series 0.2X Low-Profile Ninja Fisheye Lens for Hitachi DZ-GX3100, DZ-5100, DZ-HS301, DZ-HS401, DZ-HS803, DZ-HS903, DZ-MV350, DZ-MV700 and DZ-MV780 Camcorders

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Direct 37mm mount, 30.5mm adapter included
Produces an extraordinary degree of barrel distortion
Sleek low-profile design — Adds only 1cm of length to your camcorder
Ideal for filming that requires minimal drag
1 Year Opteka Warranty