description (in conjunction with back eye camera from DN 300) Pan angle ± 131 ° Determination of diameter without PC from DN 200 to DN 1200 Pan angle incl. viewing range ±157 ° Endless rotation Slip clutch in rotation and pan axis Automatic and manual aperture control Automatic self leveling picture (can be disabled) Camera head zero setting with selectable remote focusing Pan axis supported on both sides High-performance LED light with separate light control for close-up and remote areas Protective glass combination made of sapphire and special plastics Pressure sensor with pressure drop alarm function Two-point laser Automatic and manual aperture control 20x zoom without optical losses and 10x digital Macros for moving along sleeves 90° pan position left/right