 A technical shortcoming of color was a much shorter range on the prints which could not reproduce the full range of detail in a photograph containing a bride in white dress standing with the groom in a black suit when a single flash on camera was used.Familiar with conventional studio lighting, thanks in part to training with New Jersey photographer Joe Zeltsman, Monte understood that the solution to the shorter range film was to control the range of the scene with two lights; one off camera for modeling (key light), over a foundation of even centered light (fill) to control the tone of the shadows.With the invention of the photo-cell trigger which allowed wireless firing of the off-camera "key" flash, Monte utilized the technology to create studio-like lighting "on the fly" at wedding receptions using two identical direct flash units, one mounted over the camera as fill to control the shadow tone and a second optically triggered key light for 3D modeling which he mounted on a rolling converted medical IV stand, a clever solution to the logistics of working with the off-camera light.