The basic ET100 1/3" 420 TV lines resolution B/W camera is designed for general purpose. The basic features include Auto Electronic Shutter, Back light Compensation, and Auto Gain Control. 12 Volt DC power supply included. It's one of the most economic cameras for security surveillance ET100$105.00Camera Options: Camera only (no lens)Camera + 4mm Wide Manual Iris Lens + 6 inch bracket + 24 Volt transformer(+$54)Camera + 4mm Wide Auto Iris Lens + 6 inch Mount+ 24 Volt transformer(+$78)Camera + 8mm Standard Manual Iris Lens + 6 inch bracket + 24 Volt transformer(+$54)Camera + 8mm Standard Auto Iris Lens + 6 inch Mount+ 24 Volt transformer(+$78)