color night vision

Discussion in 'Chit-Chat' started by Bubs, May 27, 2018.

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  1. Bubs

    Bubs Young grasshopper

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    Is this all "snake oil" I thought Laview camera were just rebranded Nikvision cameras

     
  2. looney2ns

    looney2ns Known around here

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    Snake oil basically. If you have enough ambient light, you can keep lots of cams in color all night.
    They are rebranded Hikvision.
     
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  3. Mr_D

    Mr_D Pulling my weight

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    I smell BS. I have a "pro" DSLR and there's no comparing what it can do against a tiny sensor camera.
     
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  4. cb8

    cb8 Getting the hang of it

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    It's meaningless... The "pro" SLR has a F3.5 lens. The spec sheet for the LaView camera does not list aperture, but the SLR likely has a a 2-3 stop disadvantage due to the choice of lens.

    They don't specify shutter speed either. Lots of motion blur in the LaView color video. Hard to tell if it's as bad for the SLR since it's underexposed so badly.

    Of course, comparing it to the state of the art in terms of SLR or full frame based CCTV cameras make no sense either, as while they would be far superior to the LaView camera, the cost difference would be orders of magnitude different.
     
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  5. CCTVCam

    CCTVCam Pulling my weight

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    Many CCTV camera lenses have f stops between 1.8 and 2.5 - search for Aico lenses and you'll see what I mean. So I'n not sure the DSLR has an advantage in that regard.

    The biggest advantage for DSLR's comes in the sensors both in pixel size and also because it seems the best sensors are often reserved for DSLR use (presumably because they can charge more). A visit to eg the Sony Products (trade not consumer website) shows separate ranges for security, automotive and DSLR cameras and whereas the odd sensor can be found across multiple ranges, many are discreet. My best guess here is it's to 1. maintain a premium on certain products and 2. prevent companies buying a sensor as a dashcam sensor at a low price and then putting it in a DSLR because the same sensor in the DSLR range would sell for more as a premium product. By keeping each sensor range discreet, you stop companies buying a premium sensor for a less than premium price. The latter is just my guess though.
     
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  6. Mr_D

    Mr_D Pulling my weight

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    The difference in pixel size can be enormous. If the numbers I found online are correct, the pixels on my Canon 5D Mark 3 are 20x as large as the ones in my Pixel XL 2. That difference becomes huge when you try to freeze motion in poor light.
     
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