10 Times Zoom IR High Speed CCTV Outdoor/Indoor Dome Security PTZ Camera - 1/3" Sony Exview CCD, 600TVL, 10x Optical Zoom, F=1.6 F=4.8mm~48mm. Up to 164 feet IR Distance IR 50Meter 4 ch Speed Dome Camera 10X optical Zoom F=4.8--50mm , F=1.6 10X digital 1/3 sony Exview CCD ,700TVL 220 Preset points ,4 patterns with Digital WDR , Auo Day &Night , IR-Cut