| Intensifier technology amplifies and maximizes existing light to generate a color picture, even in extreme darkness (min. light level of 0.0002 lux). The screen shots show the contrast between a typical infrared camera as well as a standard camera vs. intensifier camera, taken at the same time from the same angle and location. | ![]() |
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| Intensifier Camera | Infrared Camera | Standard Camera |
| Lux is the unit of measure of light sensitivity for a camera. The lower the lux, the better the camera can view in lower light conditions. | Day—Minimum light level of 1.0 lux Low Light—Minimum light level of 0.01 lux Night Vision—Minimum light level of 0.0 lux |
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| www.friesen.com | sales@friesen.com | 1-800-663-9414 |
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| CAMERA SELECTION There are 6 factors to take into account when selecting a camera to fit your needs. 1. Consider what you're going to be monitoring. If the images are too small, it can make identification difficult. If images are too big, they may not offer enough coverage. • Determine the desired field of view in horizontal and vertical feet • Determine how far away the camera will be mounted in feet • See chart to choose approximate lens focal length needed • Consider using a varifocal lens which can be manually adjusted to increase or decrease the field of view 2. Decide if the camera will need to be mounted indoors or outdoors. • For indoor dry locations, all cameras are suitable • For general-duty outdoor or damp locations, choose a weatherproof camera |
• For very wet, rainy, washdown applications,
choose a waterproof camera or outdoor
housing 3. What time of day will the monitoring occur? • For daytime or indoor lighting applications, all cameras are suitable • For urban nighttime or low light applications, choose a camera with a minimum light rating of 0.03 lux or lower • For total darkness conditions, choose a camera with infrared LEDs 4. Determine a camera type. • Bullet cameras- compact, durable, most are weatherproof, integral lens, low-profile installations • Dome cameras- vandal resistant, lower profile, concealed camera position, more aesthetically pleasing • Traditional box cameras- large size, separate lens, mounting, and power supply selections, retrofits into existing systems • Pinhole cameras- very small size, can be hidden easily |
5. Decide between color or black and white
imaging. • Color monitoring requires more light, but offers a more natural, identifiable image • Black and white images are usually higher resolution • Most color cameras with low lux ratings automatically switch to black and white as light levels decrease to preserve resolution and detail 6. All cameras need a power source. Decide between a 12VDC or 24VAC power source. • Plug-in transformers are often used to convert 120VAC to low voltage; extension cables are available if power source is not nearby • 24VAC cameras may be individually powered or connected to a central multicamera supply |
| CAMERA TYPES | |||
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| Bullet Camera | Dome Camera | Box Camera (lens not included) | Hidden Camera |