Shape the field of view to match the scene, not the other way around. The AXIS 5503-171 is a varifocal CS-mount lens with a 9-40 mm focal range, giving installers the reach to frame entrances, corridors, parking areas, and other long-view applications with precision. DC-iris control helps maintain consistent exposure as lighting changes, while day/night support makes it a practical choice for cameras that must perform across mixed lighting conditions. This lens is built for compatible AXIS network cameras, including AXIS P1354/-E, P1355/-E, P1357/-E, Q1602/-E, Q1604/-E, and Q1614/-E. Its telephoto-oriented design supports tighter scene capture when fixed focal lengths would force a compromise. For teams specifying surveillance hardware, that flexibility can reduce rework, simplify camera placement, and improve the quality of the final image. When the job calls for controlled framing and dependable optical performance, this lens gives you a more exact fit than a standard fixed lens. It is a focused accessory for deployments where image placement directly affects security coverage and operational confidence.