Effects of the solvent on the optical limiting action of C-60 solutions are investigated under conditions of sequential two-photon absorption. C-60 transmission measurements are reported both at constant wavelength and at constant linear ground state absorbance for a set of solvents using visible nanosecond laser radiation. The limiting action is shown to depend not only on the ground state absorbance of the solute but also on the local field created by the solvent.Effects of the solvent on the optical limiting action of C-60 solutions are investigated under conditions of sequential two-photon absorption. C-60 transmission measurements are reported both at constant wavelength and at constant linear ground state absorbance for a set of solvents using visible nanosecond laser radiation. The limiting action is shown to depend not only on the ground state absorbance of the solute but also on the local field created by the solvent.