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We report high resolution photoelectron spectra of Au$\mathrm{2-}$ and Au$\mathrm{4-}$ obtained with a newly-built photoelectron imaging apparatus. Gold anions are produced by laser vaporization and the desired specie is mass selected and focused into the collinear velocity-map imaging (VMI) lens assembly. The design of the imaging lens has allowed us to obtain less than 0.9% energy resolution for high kinetic energy electrons ( \textgreater\ 1eV) while maintaining wavenumber resolution for low kinetic energy electrons. Although gold dimer and tetramer have been studied in the past, we present spectroscopic results under high resolution. For Au$\mathrm{2-}$, we report high resolution spectra with an accurate determination of the electron affinity together with a complete vibrational assignment, for both the anion and neutral ground states, while for Au$\mathrm{4-}$, we are able to resolve a low frequency mode and obtain accurately the adiabatic detachment energy.