The 9806 Blank Plate Optic Mount is a knob actuated platform mount that has four threaded M4 and five threaded 8-32 holes so you can mount that unusual optic. Use this mount horizontally as a low-cost tip-tilt stage or vertically as a more traditional optic mount. The combination of our proprietary precision knob actuated 1/4-80 screws and bushings, and sapphire seats gives you superior stability and precise repeatable adjustment. To mount the blank plate horizontally with our pedestal-riser system, use a Model 9141 pedestal clamp.