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> New port vph-4 standard post holder - lot of 5
New port vph-4 standard post holder - lot of 5
The VPH-4 Standard Optical Post Holder has a 4.0 in. (101.6 mm) height, and a spring-loaded brake shoe design which applies a constant force to 1/2 inch (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 a 1/4-20 threaded hole in it's base.
