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1/4" SONY CCD 540TVL Color Wired Digital 22X Optical Zoom Camera 2000-Z-LB2

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US $127.99
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Brand new 1/4 inch SONY CCD Chip, high speed focus, 540TVL, digital 22X optical zoom color wired camera, 0.01Lux/F 1.6 minimum illumination, with 3.9-85.5mm manual varifocal lens, internal day and night function.

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  • Specifications:

    • Image Sensor: 1/4" SONY CCD
    • Variable Focus: 22X optical zoom
    • Horizontal Resolution: 540TVL
    • Minimum Illumination: 0.01Lux/F 1.6
    • Lens: 3.9-85.5mm
    • TV System: PAL / NTSC
    • Day & Night: Internal (Off/B&W/Color) sensitivity x 60
    • Backlight Compensation: Internal (On/Off)
    • SNR: >48dB
    • Control Method: Screen menu/RS-485 interface control
    • Power Consumption: DC 12V + 10%(3.6W)
    • Video Output: 1.0vp-p,75Ω VBS
    • Operation Temperature: -10℃~+50℃
    • Operation Humidity: 0%-96%
    • High speed focus
    • 3.9-85.5mm manual varifocal lens
    • 22X optical zoom
    • With memory recovery function amd day & night function
    • This camera using a high density CCD, which provides clean, noiseless and reliable pictures
    • Remote control operations are possible through RS-485 signal interface also can control the lens by outline



    • High speed focus


    • 3.9-85.5mm manual varifocal lens

    How Does a Zoom Lens Work?

    Old Concept, New Technology:

    • Like all other electronics, camera lenses seem to get more and more complicated every year. Yet, aside from the flashy new settings and features, at the foundation of every lens is the same basic technology that has been there since the beginning

    Background: How Does a Camera Work?

    • Before getting into the technical functions of a lens, it should first be understood how a camera works
    • The word "photography" is rooted in Greek and roughly translates to "painting with light." The original concept of a camera was literally a pin-sized hole in a wall that let light into a room. This is referred to as a "camera obscura," a Latin phrase that means "dark chamber."
    • Cameras today, no matter how advanced, still use this same basic technology. Light is let in through the lens, which then reflects the light onto a sensor that rests inside of the camera
    • The camera's lens merely helps to regulate how much light is let in and how the light is processed before reaching the sensor

    Know Your Lens:

    • The inner workings of a zoom lens, in a most basic form, consist of different small optical glass lenses that are placed at different lengths from each other
    • With most zoom lenses, the zoom function is used by manually turning a ring located on the barrel of the lens. Inside of the camera, this will move a group of the glass pieces either closer to or further away from each other

    Focal Length:

    • It's not unusual to see some professional photographers lugging around two or three different lenses with them wherever they go. The reason they find it necessary to carry all the extra weight is because different lenses have different focal lengths
    • Focal length refers to the distance from the camera's image sensor to the optical glass pieces inside of the lens. This distance is what determines how far a lens can zoom in and out and is placed into three basic categories: wide-angle, normal and telephoto
    • A wide angle lens refers to a lens with a short focal length. Lenses of this sort, as the name would imply, have a very short, wide view, sometimes enabling photographers to take pictures of an entire room of people with one shot. Lenses in this category are what "fish-eye" photos are taken with
    • Lenses that fall under the "normal" category see at focal ranges ranges similar to that of the human eye; 50mm and 35mm lenses would be considered normal focal length lenses
    • Last but not least would be telephoto lenses. These lenses are normally the longest (and heaviest) of all categories. When looking through a telephoto lens, the subject often appears very close, yet the view of the subject will be very narrow

    In Surveillance Cameras:

    • Variable focus in a single lens came to security cameras in the 21st century, but is usually set manually: When you set up your surveillance system, you can choose where in its field of view you want each camera to focus. The camera doesn't zoom in on suspicious activity, and you can't refocus recorded video to read a license plate

    Package Included:

    • 1 x 1/4" SONY Chip, 540TVL 22X Digital Zoom Day & Night Color Camera

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• If the order has not been shipped; please contact DinoDirect Live Support for order cancellation.You will get your refund within 24 hours.
• If the order has already been shipped; you may return the item to us postmarked within 30 calendar days of delivery. Please contact our Live Support to inform that.
• Please contact Live Chat or click here to learn more return policy.

Product FAQs
  • Whats the difference between the zoom camera lens and SLR lens?
  • A SLR has a better image processor. A SLR will have faster write times to a card and a larger buffer so the ability to take more shots per minute, In a dSLR what you see in the veiwfinder will be what you get in your photo as far as composition. A SLR will give you more control over your settings and therefore over your photos. A SLR will have a quick phase-change autofocus system that aquires the image much much faster than the , contrast based autofocus on a point and shoot. Doing away with that lag that occurs when you push the shutter release on the point and shoot. A dSLR will have a more accurate metering with more metering options a dslr can use multiple flashes and some will control several flashes that are off camera to be used in the same way studio lights are.

  • How good does the 10x zoom on a digital camera do?
  • If you wish to take a picture of a distant object with some detail a zoom is a must. Such objects might include birds, butterflies, dragonflies, sailboats, etc. If 10x is optical zoom, it is very good. Optical zoom is used to bring the object closer to you. This is very useful while taking photos of birds etc. After taking the photograph, using digital zoom, you can make the photo bigger on the screen and watch it. This is possible on camera screen as well as on PC screen.

  • What is the difference between Optical Zoom and Digital Zoom?
  • If you have a 10 mega pixel camera and are using a 2:1 digital zoom, you are losing a large number of those pixels because only the "center" ones are used and then blown up. Thus, you get lower resolution. With optical zoom, the lens still is able to focus all of the available light onto the whole CCD, so you retain the full resolution.

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