Specifications:

• Image Device: 1/3inch Sony CCD
• TV System: PAL/NTSC
• Image Size: 3.6mm x 2.7mm
• Picture Elements: PAL: 500(H) x 582(V); NTSC: 510(H) x 492(V)
• Scanning Frequency (Horizontal): PAL: 15.625KHz; NTSC: 15.7343KHz
• Scanning Frequency (Vertical): PAL: 50Hz; NTSC: 60Hz
• Horizontal Resolution: 420 TV Lines
• Lens Mount: C/CS Mount (C Mount adaptor option)
• Auto Iris Lens: Video/DC
• Lens: 4-9mm
• Lamps: 36 pcs White Lamps
• Electronic Shutter Speed: 1/50 (1/60)-1/100,000(sec)
• S/N Ratio: More than 48db(AGC Off)
• Minimum Illumination: 0.5 Lux
• White Balance: Auto Tracking White Balance
• Black Light Compensation: ON/OFF Switchable
• Electronic Shutter Control: EE/AI Switchable
• Mirror Function: ON/OFF Switchable
• Video Out: 1.0Vp-p,75 Ω BNC
• Power: DC12V 800mA

Features:

• Safety & security, security automation, solution provider, system integration
• Use 1/3 inch SONY CCD chip
• 420 TV Lines, 4-9mm lens, with 36 pcs white lamps
• Waterproof and dustproof

Details:

• 1/3inch SONY CCD Color 420TVL IR 36 Lamps CCTV Wired Zoom Camera

• Capture your precious memories with this polaroid digital zoom camera

• 1/3 inch Sony CCD Chip, 420 TV Lines, 36pcs White Lamps, Day and Night Vision CCTV Secury Wired Color 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

Cautions:

• Do not attempt to disassemble the Camera
• Handle the Camera with care
• Do not use strong or abrasive detergents when cleaning the Camera body
• Never point the Camera toward the sun
• Do not operate the Camera beyond its temperature, humidity or power source ratings
• This equipment has been tested and found to comply with the limits for a Class A digital device. Pursuant to part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference when the equipment is operated in a commercial environment
• This equipment generates, users, and can radiate Radio frequency energy and ,if not installed and used in accordance with the instruction manual, may cause harmful interference to radio communications
• Operation of this equipment in a residential area is likely to cause harmful interference in which case the user will be required to correct the interference in which case the user will be required to correct the interference at his own expense

Package Included:

• 1 x 1/3inch SONY CCD Color 420TVL IR 36 Lamps CCTV Wired Zoom Camera