Hikvision DS-2CD51C5G0-IZS 12MP IR Varifocal Dome Network Camera with Smart Detection

Yes. The DS-2CD51C5G0-IZS is listed as a 12 MP IR varifocal dome network camera, and the datasheet gives its maximum resolution as 4000 × 3000. The main stream supports 20 fps at 4000 × 3000, which is useful when buyers want more image detail for identification and evidence. That higher resolution matters most in indoor areas where you may need to zoom into recorded footage and still keep useful detail.

It has a motorized varifocal lens, not a fixed lens. The datasheet lists a 2.8 to 12 mm motorized lens with auto, semi-auto, and manual focus options, plus a P-iris auto-iris design. It also gives a horizontal field of view range from 101° to 36.1°, which means you can adjust for a wider overview or a tighter shot depending on the scene. That flexibility is one of the biggest reasons buyers look at this model over a fixed-lens dome.

Yes. The datasheet lists minimum illumination as 0.008 Lux in color at F1.2 with AGC on, and 0 Lux with IR. It also specifies an IR range of up to 30 meters using an 850 nm illuminator. In practical terms, that means the camera is designed to keep monitoring after visible light drops, instead of becoming unusable at night or in darker indoor conditions.

Yes, it supports both. The datasheet lists H.265, H.265+, H.264, and H.264+ for the main stream, and H.265, H.264, and MJPEG for the other streams. It also states that the camera can provide 5 defined streams and up to 5 custom streams, which helps when different devices or recording profiles need different settings. That is important for buyers who want to manage storage and bandwidth more efficiently without giving up modern compression options.

The camera includes a fairly strong smart feature set for this class. The datasheet lists line crossing detection, intrusion detection, region entrance detection, region exiting detection, unattended baggage detection, object removal detection, face detection, scene change detection, audio exception detection, and defocus detection. It also notes that line crossing, intrusion, region entrance, region exiting, unattended baggage, and object removal metadata are supported. For buyers, that means the camera is not limited to simple motion alerts and can be set up for more specific event-based monitoring.

Can this camera record to a memory card without relying only on an NVR?
Yes. The datasheet states that the camera has a built-in microSD/SDHC/SDXC card slot supporting up to 256 GB. It also lists local storage and NAS support, along with ANR, and notes that with a high-end Hikvision memory card, memory card encryption and health detection are supported. That gives buyers more flexibility when they want edge storage on the camera itself in addition to, or instead of, network recording.

Yes. The interface section lists 1 audio input and 1 audio output using 3.5 mm connections, and it specifies mono sound. It also includes 1 alarm input and 1 alarm output rated up to 24 VDC/VAC, 1A, plus an RS-485 interface and a composite video output for adjustment. That matters because some buyers need the camera to do more than just send video, especially when integrating with external devices or alarm-based workflows.

Yes. The camera is listed as IK10, and the protection section specifically states ingress protection: IK10 under IEC 62262:2002. That rating matters for buyers installing in public-facing indoor areas where impact resistance is important, such as lobbies, corridors, schools, or retail spaces. It is one of the reasons this model is positioned as a dome camera for more demanding indoor environments instead of a lighter-duty unit.

How is the camera powered, and does it support PoE?

Yes, it supports PoE. The datasheet lists 12 VDC as recommended, with a supported range of 10 to 48 VDC, reverse polarity protection, and PoE under 802.3af class 3. It also provides power consumption figures of up to 10.5 W with extra load and up to 8.0 W without extra load on 12 VDC. For buyers, that means the camera can fit into standard PoE deployments while still giving a DC option where needed.

The official product page describes it as an indoor moto varifocal dome network camera, and the datasheet’s corrosion guidance says this model has no specific anti-corrosion protection. The datasheet also notes that products at this level are for areas where no specific anti-corrosion protection is needed. That strongly points to indoor or otherwise protected installations rather than exposed, corrosive outdoor environments. Buyers planning outdoor use should pay close attention to that distinction before choosing this model.