What is the adjustment method for the intercept of the fixed focus lens? Use the camera's automatic electronic shutter function to adjust the lens aperture to the maximum, focus ring to adjust the actual distance of the scene, and then adjust the intercept until the image is clearest. Zoom lens after What is the intercept adjustment method?
1. Turn on the camera's automatic electronic shutter function 2. Use the controller to adjust the lens aperture to the maximum. 3. Point the camera at an object other than 30 meters. Focus on infinity. Most lenses are facing the lens. Rotate clockwise to the end 4. Use the controller to adjust the zoom of the lens to push the subject to the furthest distance, adjust the back of the lens to make the scene the most clear 5. Use the controller to adjust the zoom of the lens to pull the scene to the nearest, fine-tune the lens to make the scene the most clear 6 Repeat 4-5 steps several times until the scene is always clear during zooming
Infrared lamps have different power and two wavelengths of 715, 830nM. The choice of wavelength depends on what factors?
1. If the user does not mind that the infrared light is seen by the naked eye, the 715nM infrared light should be preferred due to its long illumination distance.
2. If red storm issues are taken into consideration, 830nM infrared lamps must be used. Low-light cameras should be used.
3. Select a lens with a relatively large aperture 4. The divergence angle of the infrared lamp should match the field of view of the lens 5. The maximum illumination range depends on the weather conditions, the reflectivity of the object, and the surrounding light level, the infrared spotlight farthest The projection range is as follows: 500W=150-200m 300W=80-120m 50W=15-30m 30W=5-15m Mounting method of monitoring lens: There are two types of C-type and CS-type, both threads are 1 inch 32 teeth, 1 inch in diameter. The difference is that the distance between the lens and the CCD target surface is different. The distance from the datum plane to the focal point of the C type mount is 17.562 mm, which is one more length than the CS type distance from the CCD target surface. CS The distance between the focal points is 12.5 mm. Do not underestimate this one ring, if you do not have it, the lens and camera can not focus properly, the image becomes blurred. Therefore, before installing the lens, first look at the camera and the lens is not the same interface, if not, you need to increase or decrease the ring according to the specific circumstances. Some cameras do not need to be connected to the ring, but use the rear image adjustment ring (such as Panasonic products), adjust, use a screwdriver to loosen the screw on the adjustment ring, turn the adjustment ring, then the CCD target surface will be relative to the installation base back (front) Sports also play a role in the circle. In addition (such as SONY, JVC) uses a similar way like the adjustment ring, and its fixing screws are generally on the side of the camera. After loosening, adjusting one of the top gears can also make the image clear without adding or subtracting collars.
AGCON/OFF (Automatic Gain Control): The camera has a video amplifier that amplifies the signal from the CCD to a level that can be used. Its gain, ie, gain, is equivalent to having a higher sensitivity. However, in a bright light environment, the amplifier will Overload, distorting the video signal. When the switch is ON, the lens aperture is fully opened under low-light conditions, and the gain is automatically increased to obtain a clear image. When the switch is OFF, a natural, low-noise image can be obtained at low brightness.
ATWON/OFF (Auto white balance): When the switch is turned ON, the characteristic/color temperature of the light source is detected by the lens so that the white level is automatically set continuously, and the gain of the red and blue signals can be controlled even if the characteristic/color temperature changes.
ALC/ELC (Automatic Brightness Control/Electronic Brightness Control): When the ELC is selected, the electronic shutter continuously and automatically changes the exposure time of the CCD image sensor according to the brightness of the incoming light (usually from 1/50 to 1/10000 second) . When this option is selected, the ALC auto iris lens can be replaced with a fixed or manual iris lens.
It should be noted that in outdoor or bright environments, because of the limited range of ELC control, ALC lenses should be selected; under certain unique lighting conditions, the following situations may occur:
1 There is a strong smear or blurring on a high-luminance object such as a spotlight or window.
2 The image flickers significantly and the color reproducibility is unstable.
3 The white balance changes periodically. If these phenomena occur, use the ALC lens. When using a fixed iris lens with ELC, the depth of field of the image may be less than the depth of field obtained with an ALC lens. Therefore, when the camera uses the ELC mode to completely open the fixed iris lens. Depth of field is smaller than when using an ALC lens, and distant objects on the image may not be in focus. When the lens is an auto iris lens, the switch needs to be set to ALC mode.
BLCON/OFF (Backlight Compensation Switch): When powerful and useless background lighting affects the definition of important objects in the middle, you should turn the switch to the ON position.
1. Turn on the camera's automatic electronic shutter function 2. Use the controller to adjust the lens aperture to the maximum. 3. Point the camera at an object other than 30 meters. Focus on infinity. Most lenses are facing the lens. Rotate clockwise to the end 4. Use the controller to adjust the zoom of the lens to push the subject to the furthest distance, adjust the back of the lens to make the scene the most clear 5. Use the controller to adjust the zoom of the lens to pull the scene to the nearest, fine-tune the lens to make the scene the most clear 6 Repeat 4-5 steps several times until the scene is always clear during zooming
Infrared lamps have different power and two wavelengths of 715, 830nM. The choice of wavelength depends on what factors?
1. If the user does not mind that the infrared light is seen by the naked eye, the 715nM infrared light should be preferred due to its long illumination distance.
2. If red storm issues are taken into consideration, 830nM infrared lamps must be used. Low-light cameras should be used.
3. Select a lens with a relatively large aperture 4. The divergence angle of the infrared lamp should match the field of view of the lens 5. The maximum illumination range depends on the weather conditions, the reflectivity of the object, and the surrounding light level, the infrared spotlight farthest The projection range is as follows: 500W=150-200m 300W=80-120m 50W=15-30m 30W=5-15m Mounting method of monitoring lens: There are two types of C-type and CS-type, both threads are 1 inch 32 teeth, 1 inch in diameter. The difference is that the distance between the lens and the CCD target surface is different. The distance from the datum plane to the focal point of the C type mount is 17.562 mm, which is one more length than the CS type distance from the CCD target surface. CS The distance between the focal points is 12.5 mm. Do not underestimate this one ring, if you do not have it, the lens and camera can not focus properly, the image becomes blurred. Therefore, before installing the lens, first look at the camera and the lens is not the same interface, if not, you need to increase or decrease the ring according to the specific circumstances. Some cameras do not need to be connected to the ring, but use the rear image adjustment ring (such as Panasonic products), adjust, use a screwdriver to loosen the screw on the adjustment ring, turn the adjustment ring, then the CCD target surface will be relative to the installation base back (front) Sports also play a role in the circle. In addition (such as SONY, JVC) uses a similar way like the adjustment ring, and its fixing screws are generally on the side of the camera. After loosening, adjusting one of the top gears can also make the image clear without adding or subtracting collars.
AGCON/OFF (Automatic Gain Control): The camera has a video amplifier that amplifies the signal from the CCD to a level that can be used. Its gain, ie, gain, is equivalent to having a higher sensitivity. However, in a bright light environment, the amplifier will Overload, distorting the video signal. When the switch is ON, the lens aperture is fully opened under low-light conditions, and the gain is automatically increased to obtain a clear image. When the switch is OFF, a natural, low-noise image can be obtained at low brightness.
ATWON/OFF (Auto white balance): When the switch is turned ON, the characteristic/color temperature of the light source is detected by the lens so that the white level is automatically set continuously, and the gain of the red and blue signals can be controlled even if the characteristic/color temperature changes.
ALC/ELC (Automatic Brightness Control/Electronic Brightness Control): When the ELC is selected, the electronic shutter continuously and automatically changes the exposure time of the CCD image sensor according to the brightness of the incoming light (usually from 1/50 to 1/10000 second) . When this option is selected, the ALC auto iris lens can be replaced with a fixed or manual iris lens.
It should be noted that in outdoor or bright environments, because of the limited range of ELC control, ALC lenses should be selected; under certain unique lighting conditions, the following situations may occur:
1 There is a strong smear or blurring on a high-luminance object such as a spotlight or window.
2 The image flickers significantly and the color reproducibility is unstable.
3 The white balance changes periodically. If these phenomena occur, use the ALC lens. When using a fixed iris lens with ELC, the depth of field of the image may be less than the depth of field obtained with an ALC lens. Therefore, when the camera uses the ELC mode to completely open the fixed iris lens. Depth of field is smaller than when using an ALC lens, and distant objects on the image may not be in focus. When the lens is an auto iris lens, the switch needs to be set to ALC mode.
BLCON/OFF (Backlight Compensation Switch): When powerful and useless background lighting affects the definition of important objects in the middle, you should turn the switch to the ON position.
For use in outward opening windows allowing access to window locks and winders.Pet safety enclosure perfect for indoors and outdoors.
1.The multi size: 19x10cm 20cmx30cm, 30cmx40cm suitable for most ordinary family doors.
2.Install Easily: only need to install on the door (suitable position) Completely assembled for immediate use.
3.It's recommended for small pets and it can be moved from one place to another in the House if need.
Pet Door,Aluminum Pet Door,Pet Door For Screen Door,Pet Flap For Screen Door,Porthole screen
Hebei Charlotte Enterprise Co., Ltd. , https://www.cnscreening.com