Do you know how to select CCTV camera? From this article, Borsche will fully analysis it for you.
1.Dome or Bullet?
Dome camera is like half ball, so it is called Dome camera. Dome cameras are always small and look pretty, thus they are suitable for offices, lifts, stairs space and so on so fourth, where there the space is not big.
Bullet cameras look like bullet. They can be used in the district where there is not sufficient light and users just want to monitor the sight. There is no difference between dome camera and bullet camera on performance. They just look different and are used in different places.
Dome camera is like half ball, so it is called Dome camera. Dome cameras are always small and look pretty, thus they are suitable for offices, lifts, stairs space and so on so fourth, where there the space is not big.
Bullet cameras look like bullet. They can be used in the district where there is not sufficient light and users just want to monitor the sight. There is no difference between dome camera and bullet camera on performance. They just look different and are used in different places.
2.Which lens would we choose?
There are 2.8mm, 3.6mm, 4mm, 6mm, 8mm, 12mm, 16mm and 25mm lens.
1)Wide angle lens with viewing angle of over 90 degree: 2.8mm, 2.5mm. These are usually used in lift, halls.
2)Viewing angle of over 60 degrees: 3.6mm, 4mm. The objects within 5 meters can be seen clearly.
3)Viewing angle of over 50 degrees: 6mm. The objects 8-10 meters can be seen clearly.
4)Viewing angle of over 40 degrees: 8mm. The objects between 10-20 meters can be seen clearly.
5)Viewing angle of over 30 degrees: 12mm, 16mm. The objects between 20-30 meters can be seen clearly.
6)Viewing angle of over 60 degrees: 25mm The objects between 30-50 meters can be seen clearly.
Varifocal lens is another choice, and it can be proper for many different situations.
There are 2.8mm, 3.6mm, 4mm, 6mm, 8mm, 12mm, 16mm and 25mm lens.
1)Wide angle lens with viewing angle of over 90 degree: 2.8mm, 2.5mm. These are usually used in lift, halls.
2)Viewing angle of over 60 degrees: 3.6mm, 4mm. The objects within 5 meters can be seen clearly.
3)Viewing angle of over 50 degrees: 6mm. The objects 8-10 meters can be seen clearly.
4)Viewing angle of over 40 degrees: 8mm. The objects between 10-20 meters can be seen clearly.
5)Viewing angle of over 30 degrees: 12mm, 16mm. The objects between 20-30 meters can be seen clearly.
6)Viewing angle of over 60 degrees: 25mm The objects between 30-50 meters can be seen clearly.
Varifocal lens is another choice, and it can be proper for many different situations.
3.How Long distance of IR range should we choose?
About this we can adjudge how long we want to monitor. Then we can choose the IR range as the same as lens. The IR range should be matched with the lens. For example, if we choose 3.6mm lens, then15M-20M IR range is enough. Otherwise, it is wasted.
About this we can adjudge how long we want to monitor. Then we can choose the IR range as the same as lens. The IR range should be matched with the lens. For example, if we choose 3.6mm lens, then15M-20M IR range is enough. Otherwise, it is wasted.
4.Why the same looking cameras cost different in the market?
Yes, the housing may the same. But there must be different inside. Many factories take A1 or Sharp CCD camera instead of Sony CCD. A1 is much cheaper than Sony. And they may also used LED lights made in China instead of the ones imported. Their prices are quite different. And so are the other electronic parts. But Borsche will not do that fake things. We only use the superior material, not only CCD but also cables. Just users open the housing, they can see what the quality is.
Yes, the housing may the same. But there must be different inside. Many factories take A1 or Sharp CCD camera instead of Sony CCD. A1 is much cheaper than Sony. And they may also used LED lights made in China instead of the ones imported. Their prices are quite different. And so are the other electronic parts. But Borsche will not do that fake things. We only use the superior material, not only CCD but also cables. Just users open the housing, they can see what the quality is.
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