Pass ANVE Exam Guide

The IP51 and IP52 ratings indicate that the camera is protected against dust and dripping water. IP51 means the camera is protected against dust ingress to a level that would interfere with the operation and against vertically dripping water. IP52 offers the same dust protection but also protects against dripping water when tilted up to 15 degrees. These ratings make the cameras suitable for indoor use where dust and minor water exposure might occur. Axis Network Video documentation specifies the IP rating system and the levels of protection provided by different ratings.

The P-iris (Precise Iris Control) technology in Axis cameras ensures optimal image quality by precisely controlling the iris position. In bright lighting conditions, P-iris prevents the iris from closing too much, which can cause blurring due to diffraction. Instead, it maintains an optimal iris opening to balance depth of field and image sharpness. For more information, consult Axis Communications' technical notes on P-iris technology.

When a camera's image appears "washed out" or faded, especially in a hallway with no windows, the first setting to adjust is the exposure settings. Proper exposure settings ensure that the camera captures the right amount of light, enhancing image quality and color accuracy. Adjusting settings such as the shutter speed, iris, and gain can help improve the overall image contrast and color fidelity. [Reference: Axis Communications - Image Quality Settings and Adjustments]

Focusing a camera improves image clarity and detail but also increases the bandwidth. This happens because a sharper image contains more detailed information, requiring more data to transmit over the network. Hence, the bandwidth usage increases as the camera focuses more accurately.