HD ip camera must be connected with the lens before use, should generally be based on the actual situation of the application of the scene to matching the right lens, fixed focus lens or a zoom lens, manual iris lens or auto iris lens, standard lens or wide-angle lens or telephoto lens , etc. It should also pay attention to the interface of the camera lens and HD monitoring, C-mount or CS-mount (it is important to remember, or C-type lenses fashionable spin to the CS interface network camera may damage the CCD chip of high-definition network cameras ). First remove the installed lens, HD ip camera and lens protection cover, then gently rotating the lens in place of the interface and into the camera lens. Auto iris lens, the lens of the control line should be connected to a high-definition network cameras auto iris interface for electric two-variable lens or three variable lens, as long as the rotation of the lens in place, for the time being does not need calibration the equilibrium state (only after focus adjustment after the final correction of the equilibrium state). Adjust the lens aperture and focus, turn off the HD ip camera head electronic shutter and backlight compensation switch to HD ip camera at the scene you want to monitor, adjust the lens aperture and focus ring, so that the image on the monitor. If you are in relatively large changes in illumination occasions to use the network camera, the best connected with auto iris lens and electronic shutter switch placed for the camera OFF. If I choose manual aperture should camera's electronic shutter switch is set to ON, and the brightest in the application site (ambient light), the lens aperture as possible to open a large and still image (image not too fat white overload), lens adjustment is completed. Installed shield and to Shanghao bracket can. Due to the larger aperture, depth of field range is relatively small, the focal length should be as far as possible to take care of the clarity of the entire monitoring site. When the scene illumination is lowered, the electronic shutter is automatically adjusted to slow, with a larger aperture, can still make the image satisfaction. Above adjustment process, if not pay attention to open a large lens aperture as possible in bright light, but shut small, the network camera's electronic shutter automatically tune at low speed, so you can still be formed on the monitor better image; However, when the light dimmed, the aperture of the lens is relatively small, and the electronic shutter has also been at the slowest (1/50s) imaging at this time may be a dark one. After the focal length is also known as the back focal length, the imaging camera scene happened to be in on the target surface of the CCD image sensor in the standard lens (standard C / CS mount lens) is installed, generally after the focal length of the high-definition surveillance cameras have done the appropriate the adjustment in the factory, with fixed focus lens applications generally do not need to adjust the back focus of the camera. However, in some applications it may appear the image is not clear when the lens focus ring to adjust to the limit position, must first confirm whether the lens interface. If confirmation on the need for the back focal length of the camera to be adjusted. According to experience, in the vast majority of high-definition surveillance cameras with connected electric zoom applications often need to adjust the back focal length of the network camera. Adjusted focal length step: the lens is properly installed network cameras; open the lens aperture as possible to the maximum (the purpose is to reduce the depth of field range, to accurately find the the imaging focal point); lens zoom adjustment (ZoomIn) to telephoto (Tele), state outside shooting 10m close-up of an object, and then by adjusting the focus (Focus) close-up image tone clear; conducted In contrast to the previous step zoom adjustment (ZoomOut). pull back the lens to wide angle (Wide) state , then the screen into a panoramic image containing the above close-up objects, but can not be re-focus adjustment (Note: If the image blur can not adjust the focus), but to prepare the next step back focus adjustment; HD socket head cap screws loosen monitoring network front of the surveillance camera for fixed-focus adjustment ring, and rotate the focus adjustment ring (on the back focus adjustment ring rotating lens camera directly driven by its built-in after the focus ring), until the screen far the most clear, then temporarily tighten the Allen screws; re-push the lens to telephoto state to see just shot close-up objects is still clear, if not clear then repeat the above (a), b, c steps; tighten the socket head cap screws , the aperture is adjusted to the appropriate position.
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