SecondBase, sorry for not responding earlier. Your question was what
camera for a masthead. No camera for this condition, since it would make one very seasick just to watch the image shift back and forth with every ripple on the
water making the masthead whip about. Better to have a
battery of four cameras: three rigged at 120 degrees to keep a perimeter
record, and the fourth to be a PTZ for zooming in when you want to
monitor the camera personally. A fifth camera choice would be (if I could afford $10K+) would be a FLIR to actually read a heat image, as someone else has pointed out. The cameras I refer to, from SCD,
work passively in low to zero light levels, illuminating their targets with infrared lamps. While helpful, these low light cameras lack the resolution desired for excellent identification. However, if you are home alone and you hear a bump in the night, being able to take a quick looksee to see if a potential problem exists beats no options. If you don't like what you see, then you can activate your
deck lights, or as some
boats I won't mention might do, turn on the High Intensity Discharge decklights (directed outwards, just below the horizontal) to activate the full color, high resolution capacity of the rest of the cameras. Just turning on the lights can have a profound effect on a bad boy coming closer. If that doesn't
work, the switch next to the HID lights goes to the 130dB siren
alarm (three languages,
English, Spanish, French) that tells bad boys to play elsewhere, wakes up the neighbors and the rest of the folks within earshot that something bad is about to occur near by.