This short video - produced in 4K entirely with the iris visualization engine that comes standard with the VIC-3D HS FFT digital image correlation software - features the results of a recent test conducted with Phantom High-Speed T3610 cameras to find the operational deflection shapes (ODS) which occur after excitation of a tuning fork. Stay tuned for more examples of how DIC from Correlated Solutions is redefining vibration measurement with full-field, non-contact, single excitation analysis.