I've seen Canon versions of these, but this is an "official" Nikon one. It's sold officially on the Nikon website. Was wondering if anyone here owned one and if it was worth the investment? These look awesome!
http://shop.nikonusa.com/store/nikonusa/en_US/pd/productID.232829300
http://shop.nikonusa.com/store/nikonusa/en_US/pd/productID.232829300