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Charles Liu

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Everything posted by Charles Liu

  1. Well, it depends, most low ends do not.
  2. Charles Liu

    Where do you buy your cameras?

    Tesc is right, but the problem is that the client will ask your price in advance, whatever your service is, if your price is a little bit higher, and you will be "passed" from the beginning...
  3. Charles Liu

    Camera store? Video degradation

    I think most cameras are okey, if just for security purpose.
  4. Charles Liu

    Door jamb cam

    Pretty interesting idea...
  5. Charles Liu

    ir illuminators on d/n cameras?

    much better...
  6. Charles Liu

    Sony Effio-e solution Camera

    Effio-e are applied mostly on 700TVL or above, better than Hitachi DSP solution I suppose...
  7. Charles Liu

    Terminology Confusion

    3x varifocal is that iris, focal length, focus adjustable, it is sort of "low level" camera, 2x maybe better.
  8. Charles Liu

    ir illuminators on d/n cameras?

    the answer is yes. there are many kinds of IR D/N, when in sunlight, the filter mounted to remove the IR for you to get clear vision, at night, the filter unmounted for you to see image of IR. The filter could be realized physically or just a progremm on DSP. the key point is the timing of IR "light on", it must be the same moment which IR filter unmounted.
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