name the brand of digital camera weighs less than 730.0 and uses the same viewfinder as the canon powershot g9?
(AND digicams.digital_camera (AND (lt digicams.digital_camera.weight 730.0^^http://www.w3.org/2001/XMLSchema#float) (JOIN (R digicams.camera_viewfinder_type.digital_cameras) (JOIN digicams.camera_viewfinder_type.digital_cameras m.04wjztz))))