I decided to order a Nitze pen because I heard good things about it. After studying alone and looking at the pictures, I was hooked. This grip is designed with multiple 1/4-20 holes for attaching various hardware. It also has 10 ARRI mounting holes making this grip very useful. Also, it features a quick release safety bar so you can quickly attach and detach the handle. If you doubt this pen, I can tell you that it is very comfortable to hold. I highly recommend the Nitze pen for your camera.