What resolution does the DS-2CD2955G0-ISU provide? The camera records at a maximum resolution of 2560 × 1920 at 5MP, with up to 25fps in 50Hz environments or 30fps in 60Hz environments. It uses a 1/2.7" Progressive Scan CMOS image sensor.
Does the camera really provide a 180-degree field of view? Yes. The fixed 1.05mm fisheye lens provides 180° horizontal, 180° vertical and 180° diagonal coverage. This extremely wide view is designed to capture an entire area from one strategically positioned camera.
Is this a 360-degree camera? The physical fisheye lens has a 180° field of view, but the way the scene is displayed depends on the mounting position and dewarping mode. Hikvision supports multiple fisheye, panoramic and virtual PTZ display layouts, which can transform the original fisheye image into different viewing formats.
What is fisheye dewarping? Fisheye lenses naturally produce a curved circular image. Dewarping digitally transforms that image into flatter panoramic or virtual PTZ views that are easier to monitor. The DS-2CD2955G0-ISU supports multiple display modes, although available dewarping options can depend on the NVR, software or viewing platform being used.
How far does the infrared night vision reach? The camera provides Smart IR illumination up to 8 metres using 850nm infrared light. Hikvision specifies 0 Lux operation with IR enabled, allowing monochrome monitoring when there is no usable visible light.
How far can the camera identify a person? Hikvision publishes DORI values of approximately 21m detection, 8m observation, 4m recognition and 2m identification. These figures highlight that this fisheye model is designed primarily for broad situational awareness rather than detailed identification across a large room.
Does the DS-2CD2955G0-ISU record audio? Yes. The ISU version includes a built-in microphone for mono audio recording alongside video. It also provides a separate audio input if an external microphone is preferred.
Does it have built-in two-way audio? Not completely out of the box. The camera has a built-in microphone but no integrated speaker. A line-level audio output is provided, so a compatible external speaker can be connected when two-way audio is required.
Does it support line-crossing and intrusion detection? Yes. Hikvision lists line crossing and intrusion detection as supported smart events, in addition to basic functions such as motion detection, video tampering alarm and system exception detection.
Can the camera trigger external alarm equipment? Yes. The camera includes one alarm input and one alarm output, allowing compatible external devices to be integrated into the surveillance setup. Event linkages can include recording, image capture, alarm output and monitoring-centre notifications.
Can the camera record without an NVR? Yes. It includes an onboard microSD/microSDHC/microSDXC slot supporting up to 256GB, and NAS network storage is also supported. An NVR remains more practical for centralised playback and larger multi-camera installations.
Is the DS-2CD2955G0-ISU suitable for outdoor use? This model should primarily be treated as an indoor fisheye camera. Hikvision does not specify an IP weatherproof or IK vandal-resistance rating for it, so exposed outdoor installation is not recommended without appropriate environmental protection.