With axial resolution of 40 nm, RP1500 Rainbow Probe provides non-contact measurement by analyzing optical spectrum of reflected light to measure surface height changes. Unit can measure where other sensors cannot, characterizing transparent, translucent, fragile, liquid, or easily deformable surfaces. Deployable under program control, RP1500 is compatible with QVI ZONE3®, MeasureMind® 3D MultiSensor, and VMS metrology software platforms.