What is mm in CCTV camera?
Lens focal length is measured in millimetres (mm) and the smaller the number is, the wider the viewing angle will be. This means that objects viewed through a 3.6mm lens will appear smaller and farther away than if they were viewed by the same camera using a 6mm lens or larger.
Are bullet or dome cameras better?
Both cameras will operate well in any location, however, the bullet camera will work better for a long-range video while the dome camera will work better for shorter distances but a wide-angle. Both dome and bullet cameras include LEDs that allow the camera to see in dark or low-light situations.
What is the range of 2MP CCTV camera?
2MP CCTV Bullet Camera, Camera Range: 20 meter
| Camera Technology | Analog Camera |
|---|---|
| Camera Resolution | 2MP |
| Camera Range | 20 meter |
| Camera Type | Wired Camera |
| Lens Size | 3.6mm |
Is 2.8 mm lens better than a 4mm lens?
Although it has more clarity at a further distance, the 4mm lens shows a similar scene to the 2.8mm. The main difference is the reduced angle of view which gives the illusion that objects are closer to the camera. A 4mm lens is useful for detection & identification.
How wide can a dome camera see?
However, most dome cameras have a wide-angle lens. Wide-angle lenses capture larger viewing areas than regular lenses. Measured in millimeters (mm), a dome camera’s lens can be anywhere from 1.8mm (wide angle) to 170mm (narrow angle). Dome cameras offer both digital and optical zoom.
Is 2 MP CCTV camera good?
Generally speaking, the 2MP CCTV camera is enough for general purpose monitoring of the front door, backyard, or indoors, as I put it before. And the 4MP or 5MP cameras have more advantages in capturing the details at a distance.
How good is a 2MP security camera?
In most indoor applications with cameras mounted on ceilings that are considered at normal height – where general surveillance is required – the commonly available 1MP to 2MP resolutions are good enough.