B005EYYD4G Opteka Platinum Series 0.2X Low-Profile “Ninja” Fisheye Lens for Canon VIXIA HF R200, R20, R21, ELURA 80, 85, 90, OPTURA 50, 60, 600, MVX300, MVX330i, MVX350i, MVX40i/40, MVX45i and MVX4i 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