Clamp your scope or camera to any item up to 1.8" diameter in or around your blind using the Opticron BC-2 Hide Clamp with a 500mm Center Column. A 500mm post allows for vertical adjustment range of 19.7" and a screw pins it in place, allowing you to set the height. A 1/4"-20 stud tops off the post so you can attach an optic of your choice.