  We present accurate integrated-light photometry in Johnson/Cousins V, R, and
I for a sample of 28 globular clusters in the Magellanic Clouds. The majority
of the clusters in our sample have reliable age and metallicity estimates
available in the literature. The sample encompasses ages between 50 Myr and 7
Gyr, and metallicities ([Fe/H]) between -1.5 and 0.0 dex. The sample is
dominated by clusters of ages between roughly 0.5 and 2 Gyr, an age range
during which the bolometric luminosity of simple stellar populations is
dominated by evolved red giant branch stars and thermally pulsing asymptotic
giant branch (TP-AGB) stars whose theoretical colours are rather uncertain. The
VRI colours presented in this paper have been used to calibrate stellar
population synthesis model predictions.
