When looking to change the lens of your outdoor security camera, it is important to know what type of lens mount your camera uses. There are two main types of lens mounts and they look the same to most people. If you can't seem to get the camera to focus after changing the lens, then you probably got the wrong type of lens for your security camera.
The only thing that differentiates the two is the distance between the lens and the sensor once the lens is in place inside the security camera. With the C-mount, the distance between the lens and the sensors needs to be 17.526mm whereas the distance between the lens and the sensors needs to be 12.5mm in the CS-mount.
With what is typically called a C/CS adapter ring, which is just a 5 mm spacer used to make up the difference in spacing, it is possible to fit a C-mount lens over a CS-mount camera, but not the other way around. Focus is especially important for high-stakes outdoor security cameras that need to recognize faces or detail so make sure you get the right one.
Sunday, July 12, 2009
Friday, July 10, 2009
Outdoor Security Camera Positioning and Legal Considerations
When installing an outdoor security camera the positioning is a very important consideration. If the purpose is to monitor an overview of the area, the position of the camera must allow for unobstructed recording. If an outdoor security camera is needed to identify individual faces for example, then the camera must be positioned and focused in a way that can capture the required level of detail.
Especially important with outdoor surveillance, legal consideration must be part of your installation plan. There may be restrictions or laws that prohibit monitoring certain areas and it depends on both federal and local regulations. It is a good idea to check the laws of the local region. Some places may require signage while others might consider your property part of a public area which you are not entitled to capture with your outdoor security camera.
Especially important with outdoor surveillance, legal consideration must be part of your installation plan. There may be restrictions or laws that prohibit monitoring certain areas and it depends on both federal and local regulations. It is a good idea to check the laws of the local region. Some places may require signage while others might consider your property part of a public area which you are not entitled to capture with your outdoor security camera.
Wednesday, July 8, 2009
Fake Outdoor Security Camera
There are situations where the level of criminal activity is petty and a fake outdoor security camera will suffice. Take note that while it is not recommended to use an outdoor fake security camera when surveillance is necessary, it is only for situations where you want people to behave thinking their actions are being monitored. In those cases where the required level of outdoor protection does not warrant a real monitoring system, then an outdoor fake camera is perfect.
It is not expensive to get a fake outdoor security camera with the red operating light as well as motion sensors to move when it senses people in the vicinity. The red light will go on and the camera will swivel about like it is a real working outdoor security camera.
It is not expensive to get a fake outdoor security camera with the red operating light as well as motion sensors to move when it senses people in the vicinity. The red light will go on and the camera will swivel about like it is a real working outdoor security camera.
Monday, July 6, 2009
Outdoor Security Camera Installation
Properly installing the outdoor security camera is just as important as selecting the right type of camera for the job. Adjustments to camera positioning and small environmental considerations can make the difference in achieving high-quality surveillance video.
Lighting is one of the most important considerations. It is easy and inexpensive to add lamps for almost any situation if needed. It is important that the lighting levels meet the security cameras minimum requirements and it is always a good idea to use lots of light when possible. On the other end of the spectrum (no pun intended), avoid direct sunlight as this will blind the camera and possibly risk the health of your image sensors inside the camera. Also, avoid backlight whenever possible. This can be from any source of lighting including the sun or a lamp. Always try to have the sun behind the camera or add frontal lighting if there to help counteract certain lighting situations.
Lighting is one of the most important considerations. It is easy and inexpensive to add lamps for almost any situation if needed. It is important that the lighting levels meet the security cameras minimum requirements and it is always a good idea to use lots of light when possible. On the other end of the spectrum (no pun intended), avoid direct sunlight as this will blind the camera and possibly risk the health of your image sensors inside the camera. Also, avoid backlight whenever possible. This can be from any source of lighting including the sun or a lamp. Always try to have the sun behind the camera or add frontal lighting if there to help counteract certain lighting situations.
Saturday, July 4, 2009
Selecting The Right Outdoor Security Camera
When trying to select the appropriate outdoor security camera to accommodate your needs, one of the key considerations is the purpose of surveillance. To identify individual persons or capture the license plate of an offender requires an outdoor security camera with different capabilities than if the need was simply to monitor general activity.
Determining the number of areas to be covered as well as the size of each area lets us know how many and the type of security cameras required. If two smaller areas were close enough together, a megapixel camera with wide-angle lens might be a possible substitute for two non-megapixel cameras. Also, a fixed outdoor security camera offers continuous coverage but of a smaller area than a PTZ camera which can survey a large range but only parts at a time.
Outdoor surveillance is particularly demanding on the camera since lighting levels tend to be less controllable and the environment is much more physically demanding. If the camera is not built tough enough, additional housing may be needed to protect the outdoor security camera from weather, dust, humidity, or vandalism.
Determining the number of areas to be covered as well as the size of each area lets us know how many and the type of security cameras required. If two smaller areas were close enough together, a megapixel camera with wide-angle lens might be a possible substitute for two non-megapixel cameras. Also, a fixed outdoor security camera offers continuous coverage but of a smaller area than a PTZ camera which can survey a large range but only parts at a time.
Outdoor surveillance is particularly demanding on the camera since lighting levels tend to be less controllable and the environment is much more physically demanding. If the camera is not built tough enough, additional housing may be needed to protect the outdoor security camera from weather, dust, humidity, or vandalism.
Subscribe to:
Comments (Atom)