A test equipment , comprising: multiple fiber bundles (201, 202, 305a-c) each having a length selected to correspond to a predetermined time-of-flight for light pulses to travel from a laser aperture of an electro-optic range-finding device to a target and back to a detector aperture of the range-finding device, wherein an input end of each of the fiber bundles is configured for being positioned proximate to the laser aperture and to receive a portion of light emitted through the laser aperture, wherein the input ends of the fiber bundles are positioned at different angular positions and are oriented toward a common point; an output end of each of the fiber bundles is configured for being positioned proximate to the detector aperture and to emit light from the respective fiber bundle through the detector aperture; and each of the fiber bundles comprises a plurality of fibers; fiber attenuators connected along the fibers of the fiber bundles, each fiber attenuator configured to attenuate an amplitude of light propagating through the respective fiber by an amount corresponding to a target of known reflectance and distance; and a positional mask configured to be positioned between the input end of a specified one of the fiber bundles and the laser aperture of the range-finding device, the positional mask including an aperture that is configured to be shifted into alignment with one of the fiber ends and that allows light from the laser aperture to enter one of the fibers of the specified fiber bundle while blocking light from the laser aperture from entering one or more remaining fibers of the specified fiber bundle. multiple fiber bundles (201, 202, 305a-c) each having a length selected to correspond to a predetermined time-of-flight for light pulses to travel from a laser aperture of an electro-optic range-finding device to a target and back to a detector aperture of the range-finding device, wherein an input end of each of the fiber bundles is configured for being positioned proximate to the laser aperture and to receive a portion of light emitted through the laser aperture, wherein the input ends of the fiber bundles are positioned at different angular positions and are oriented toward a common point; an output end of each of the fiber bundles is configured for being positioned proximate to the detector aperture and to emit light from the respective fiber bundle through the detector aperture; and each of the fiber bundles comprises a plurality of fibers; an input end of each of the fiber bundles is configured for being positioned proximate to the laser aperture and to receive a portion of light emitted through the laser aperture, wherein the input ends of the fiber bundles are positioned at different angular positions and are oriented toward a common point; an output end of each of the fiber bundles is configured for being positioned proximate to the detector aperture and to emit light from the respective fiber bundle through the detector aperture; and each of the fiber bundles comprises a plurality of fibers; fiber attenuators connected along the fibers of the fiber bundles, each fiber attenuator configured to attenuate an amplitude of light propagating through the respective fiber by an amount corresponding to a target of known reflectance and distance; and a positional mask configured to be positioned between the input end of a specified one of the fiber bundles and the laser aperture of the range-finding device, the positional mask including an aperture that is configured to be shifted into alignment with one of the fiber ends and that allows light from the laser aperture to enter one of the fibers of the specified fiber bundle while blocking light from the laser aperture from entering one or more remaining fibers of the specified fiber bundle. <EOS>