altCleveland Crystals (Highland Heights, OH) has introduced the CRS150 counter rotation stage that can facilitate simultaneous angle-tuning of two crystals oriented for compensation of birefringent walkoff. The walkoff compensation configuration provides nonlinear optical conversion, reduces distortion, and minimizes beam displacement. Mounted in a compact footprint, the CRS150 provides operation via computer control with phase-matching software for second harmonic generation or optical parametric oscillation with specific crystals, manual micrometer adjustment, or standalone remote control of a motorized micrometer encoded for readout of relative position.