B005EZ2NMY Opteka Platinum Series 0.2X Low-Profile Ninja Fisheye Lens for Canon OPTURA S1, MVX1Si, MVX460, MVX450, MVX430, DC20, DC10 and ELURA 100 Digital Camcorders

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Direct 37mm mount, adapter included (if necessary)
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