The M-VPH-1.5 Standard Optical Post Holder has a 38.1 mm height, and a spring-loaded brake shoe design which applies a constant force to 12.7 mm diameter optical posts even when the thumbscrew is loosened. This allows the orientation of an optical mount to be easily adjusted with one hand. This post holder is designed for standard posts, and has an M6 threaded hole in it's base.

M-VPH-1.5标准光学柱架高度38.1 mm,弹簧制动蹄片设计,即使拇指螺丝松开,也能对直径12.7 mm的光学柱施加恒定的力。这使得光学安装的方向可以很容易地用一只手调整。这个立柱架是为标准立柱设计的,它的底座有一个M6螺纹孔。