Apparatus for broadcasting, recording, transmission or reproduction of sound or images; apparatus for recording, transmission or reproduction of sound and images; image intensifiers; teleprompters; scientific and technical apparatus, namely, optical mirrors; adaptor rings for attaching matte boxes and sunshade matte boxes to cameras; mounting brackets adapted for cameras for attaching mobile devices to matte boxes and sunshade matte boxes so they can be used as teleprompters; camera matte box...