Fit thread size 37mm. JVC Everio GZ-HD500, GZ-HD620, GZ-HM300, GZ-HM320, GZ-HM340, GZ-HM550, GZ-MG505. You just screw this lens on front of your existing lens. So you can use it both ways: like macro lens (without wide angle part) and like wide angle lens!
eBay