I have just purchased a Toyo VX125 camera and am considering purchasing the refl ex viewer. Although I don't plan any extensive hiking, I am still concerned abo ut the weight of the viewer, especially since the camera is fairly light itself and the quick release isn't rated for very much weight. Does anyone know what th e viewer weighs? What experiences do users have with the viewer? Does the conv enience of using it make up for its size and weight and cost? Would appreciate any responses.