This Lens Hood for Panasonic GH4 12-35mm Lumix Lens with Rails Attachment has a 60mm opening. It fits perfectly over the Lumix 12-35mm Lens and does not impede the zoom function of the lens. It works excellent with the Edelkrone pocket rods and Focusone accessories.
![Panasonic-Lumix-GH4-4K-camera-accesories-lens-hood-with-rail-attachement-shapeways](http://3dguy.tv/wp-content/uploads/2014/12/Panasonic-Lumix-GH4-4K-camera-accesories-lens-hood-with-rail-attachement-shapeways-403x300.png)