Discussion in 'Digital Cameras' started by JamesDorset, Dec 27, 2006.

  1. JamesDorset

    JamesDorset Guest

    Sony has a "nightshot" feature on some of their cameras and video-cameras.
    They advertise zero lux capability.

    Besides turning on one or more infrared LEDs, do these cameras put an
    infrared filter in front of the lens? Since the range of the IR LEDs is
    very limited, would "nightshot" give you an edge on recording aircraft and
    visible satellites at night?

    For shooting aircraft and visible satellites at night, could a Canon
    videocam simulate nightshot mode by putting an infrared lens in front of
    the lens? What would be the best video camera/lens combo for this type of

    I really appreciate any info.....
    JamesDorset, Dec 27, 2006
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  2. In fact, they *remove* the infrared filter from the lens, I think, so that
    infrared radiation can reach the sensor.(Almost) all sony camcorders have
    this feature, although you don't have really colour, but something with a
    greenish cast.My sony camcorder (dcr hc 32e) has something called "slow
    colour shutter" which is nightshot without infrared light.Then, of course,
    you would need a tripod, and some remote control of the camera (which is
    included).So, if you already have the camcorder, all you need is a tripod..
    Hope this helps,
    Tzortzakakis Dimitrios, Dec 27, 2006
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  3. JamesDorset

    JamesDorset Guest

    I was hoping to stay less than one thousand USD. I wanted something that
    would also be suitable for aircraft shots during the day - hi
    magnification and IS.

    I've been looking at a range -- from the Sony SR1 to the SR100.....
    JamesDorset, Dec 27, 2006
  4. JamesDorset

    Mike Fields Guest

    Be careful pointing anything that is an IR source at an aircraft -
    especially things like police helicopters where their IR cameras
    will see yours. They may perceive you as a threat of some sort
    since your IR source will be obvious on their cameras. Personally,
    I would rather not have them considering me a possible threat !!

    Mike Fields, Dec 28, 2006
  5. JamesDorset

    JamesDorset Guest

    I agree wholeheartedly.

    But there's no real worry about the IR LED in one of these nightshots.
    The power is so very low that I doubt any of them has a range greater than
    20 feet. If a helicopter is that low, I submit you've got bigger problems
    (a la Vic Morrow)!
    JamesDorset, Dec 28, 2006
  6. JamesDorset

    Mike Fields Guest

    Not exactly what I meant. True, there is no danger from the IR LED
    in the camera, HOWEVER, if the police perceive that someone may
    be targeting them, (since the IR will show up like a bright light
    if pointed at them on their night-vision) that is the problem (and
    there have been enough cases of that to justify their fears).

    Mike Fields, Dec 28, 2006
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