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1/4inch SONY CCD 480 TVL 0.5Lux/F1.2 27X Zoom Camera AS-1027

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US $89.69
TV Standard:
NTSC
PAL
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1/4inch SONY CCD 480 TVL 27X Zoom Lens Camera AS-1027. 480 TV line. 27X Zoom lens. Number of Pixels: PAL:752(H)×582(V) NTSC:768(H)×492(V) . System of Signal: PAL/NTSC. Security Products belong to this category of products, the main purpose is to facilitate the management of user security, protection, supervision, and control purposes. Can be used for companies, institutions, schools, shops, parking and so on. Capture your precious memories with this polaroid digital zoom camera! This camera won't miss a thing!

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  • Specifications:

    • System of Signal: PAL/NTSC
    • Pickup Device: 1/4inch SONY CCD
    • Number of Pixels: PAL:752(H)×582(V) NTSC:768(H)×492(V)
    • Horizontal Resolution: 480 TV Line
    • Lens: 27X Zoom Lens
    • Minimum Illumination: 0.5Lux/F1.2
    • Backlight Compensation: ON/OFF(Optional)
    • Electronic Shutter: 1/50(1/60)~1/100000sec 
    • S/N ratio: >50dB
    • AGC: ON/OFF(Optional)
    • White Balance: ON/OFF(Optional)
    • Sync System: Internal
    • Video Output: 1.0Vp-p/75ohm
    • Operation Temperature: -20℃~+50℃
    • Power Supply: DC 12V <500mA
    • Dimensions: 103 x 60 x 60.4mm / 4.05 x 2.36 x 2.37in(L x W x H)

    Details:

    1/4inch SONY CCD 480 TVL 0.5Lux/F1.2 27X Zoom Camera AS-1027

    • 1/4inch SONY CCD 480 TVL 0.5Lux/F1.2 27X Zoom Camera

    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 1/4inch SONY CCD 480 TVL 0.5Lux/F1.2 27X Zoom 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
  • Why is Focal Lens important?
  • If you're looking for a security camera for the office or warehouse and you want to see as much as you can, you should look for a 2.8 or 4mm lens (provides a wide, somewhat distant view). If you need to observe a limited area, such as an entrance, you should choose an 8mm lense (provides a narrow view and objects are closer). In other words, the smaller the focal length number, the wider the field of view. To get the most flexibility in choosing the best field of view, consider a varifocal lens.

  • What's a Varifocal Lens?
  • The varifocal lens is ideal in situations where the security camera surveys a distant point. One can adjust the zoom and focus of these lenses, either manually or automatically. This is sometimes referred to as "manual zoom" lens.

  • CMOS vs. CCD Image Sensors?
  • CMOS (complementary metal oxide semiconductor) and CCD (charge coupled device) image sensors are two different technologies for capturing images digitally. Although recent advances in CMOS sensors are closing the gap, CCD sensors currently offer the highest possible image quality.

    A CMOS camera has a less-expensive image sensor. The other benefits of CMOS are size, and low-power consumption. Most CMOS cameras can even be operated for several hours on a single 9-volt battery! The low-power consumption comes at a price however. CMOS cameras have a lower resolution and less color quality than the CCD cameras. However, the CCD Cameras are much more sensitive to power fluctuations, due to the fact that the CCD Sensors have 4 integrated processors compared to the one processor found on a CMOS sensor. CCD cameras usually have much better picture quality, resolution and color balance. The drawback of a CCD camera is high-power consumption and sensitivity to minute voltage changes.

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