New Pixel Vertax D17 Battery Grip is a handy accessory that mounts to the bottom of your Nikon D500. After mouthed this grip, both the weight and the height of your camera body grow which makes the heart moves back and extends the balance arm of grip with longer lenses.
Battery life is greatly strengthened with having Vertax D17 battery grip on your camera allows you to keep an extra battery with all the times.
Vertax D17 Battery grips have a handy extra shutter button to make your fatigue due to the grip angle during the durable vertical shooting.
More information : http://www.pixelhk.com/Proshow.aspx?id=396