  We describe the capability of a high-resolution three-dimensional digital
image correlation (DIC) system specifically designed for high strain-rate
experiments. Utilising open-source camera calibration and two-dimensional DIC
tools within the MATLAB framework, a single camera three-dimensional DIC system
with submicron displacement resolution is demonstrated. The system has a
displacement accuracy of up to 200 times the optical spatial resolution,
matching that achievable with commercial systems. The surface strain
calculations are benchmarked against commercially available software before
being deployed on quasi-static tests showcasing the ability to detect both in-
and out-of-plane motion. Finally, a high strain-rate (1.2$\times$10$^3$
s$^{-1}$) test was performed on a top-hat sample compressed in a
split-Hopkinson pressure bar in order to highlight the inherent camera
synchronisation and ability to resolve the adiabatic shear band phenomenon.
