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Robust, particularly low-cost and proven for many years prisms with almost indestructible plastic tilt holder, which were designed with the harsh conditions in the tunnel and for monitoring purposes. The centering of the prism is in the range of a few tenths of a millimeter.
Robust clamping screw for the vertical axis, which prevents accidental rotation of the prism effect. The mounting of the tilt axis is kept deliberately stiff, again to avoid unwanted tilting. For extra charge we can also provide the tilt axis with a screw clamp. When running 46-MP is the visible center of the prism is in the standing and tilting axis.