Capture 5 MP surveillance video in a dome format while retaining control over scene framing through a varifocal lens. UNITED DIGITAL IPC3535SR4-ADZK-H combines these two requirements for camera positions where the mounting location is fixed but the target distance, coverage width, or subject size must be established during commissioning. Its dome form factor suits installations that call for a compact camera profile rather than an exposed directional housing. A varifocal lens gives the installer latitude to set the scene after the camera is mounted. This matters when a camera must cover a doorway, corridor, counter, reception area, loading point, or other location with uncertain framing requirements. Instead of selecting one fixed lens angle before installation, the field of view can be adjusted to prioritize a defined area within the camera's 5 MP image. Choose this camera when the project calls for 5 MP imaging and a varifocal dome configuration in the same device. The combination distinguishes it from fixed-lens dome placements where the camera angle can be aimed but the lens framing cannot be adjusted. Selection should center on the required resolution, the intended camera position, and the scene width and distance that the lens must cover after mounting.