Mount Sensitivity Calculator

Kinematic mounts steer optics by advancing a fine-thread adjustment screw against a pivot point. The angular resolution per revolution equals the linear advance divided by the lever arm distance: θ = Δz / L, where Δz is the thread pitch in mm and L is the distance from pivot to screw contact. For a reflective optic, the beam deflects by twice the mirror tilt, doubling the effective angular sensitivity. Enter thread pitch (in TPI or mm pitch) and lever arm length to see angular resolution per revolution and per degree of screw rotation. Add a target distance to estimate beam displacement at a detector or coupling port — useful when verifying that a given mount has sufficient resolution for a required alignment tolerance.