Hikvision DS-2CD3956G2-ISU 5MP 360° Fisheye Camera with Audio
100% Official Brand / Serial Number Verifiable / 3-Year Warranty
- 360° panoramic view — one camera replaces multiple fixed units
- 120dB True WDR handles strong backlight without washing out details
- Built-in microphone captures audio alongside video in real time
- External audio I/O lets you connect speakers and additional mics
- 8m IR night vision keeps monitoring reliable after dark
- Supports up to 512GB microSD card for weeks of local recording
- Flexible power — 12V DC or PoE (802.3af) simplifies installation
Details
360-Degree Panoramic 5 MP Fisheye Surveillance
The Hikvision DS-2CD3956G2-IS(U) is a 5 MP AcuSense Fisheye Network Camera designed for comprehensive blind-spot-free monitoring in retail stores, commercial offices, hotel lobbies, and classrooms. Powered by a 1/2.7" progressive scan CMOS sensor and an ultra-wide 1.05 mm fixed lens (horizontal FOV 360°, vertical FOV 180°), it captures crisp 2560 × 1920 video at up to 30 fps, replacing multiple traditional fixed cameras with a single streamlined ceiling installation.
Flexible Dewarping Modes and Edge AI Analytics
Equipped with onboard hardware and software dewarping, the camera transforms curved fisheye video into intuitive rectilinear views tailored to operator requirements:
- Versatile Display Modes: Supports Fisheye View, 180° Panorama View, Dual-Channel Panorama, 4PTZ virtual tracking, and combined Fisheye + 3PTZ multi-view modes.
- Deep-Learning Heat Mapping: Generates customer dwell time and traffic density visual maps to assist commercial business intelligence.
- HEOP Open Platform: Offers 1.5 TOPS AI computing power with 400 MB Smart RAM and 2 GB eMMC memory, supporting third-party deep-learning algorithm imports via C/C++ and OpenDevSDK.
- 120 dB True WDR & 8 m IR: Balances difficult backlighting across indoor entrances while built-in 850 nm smart IR provides up to 8 meters of discreet night illumination.
Discreet Footprint, Audio Integration, and Standard PoE
Measuring only 119.9 mm in diameter and weighing 320 g, the camera blends discreetly into ceiling surfaces. It features a built-in microphone (-U model) with environmental noise filtering, 1 audio line in/out, 1 alarm input/output, 1 RS-485 port, and a microSD slot supporting up to 512 GB local storage. It operates efficiently via standard PoE (802.3af, max 7.5 W) or 12 VDC.
Specification
| Camera | |
| Image Sensor | 1/2.7" Progressive Scan CMOS |
| Max. Resolution | 2560 × 1920 |
| Min. Illumination | Color: 0.017 Lux @ (F2.25, AGC ON),B/W: 0 Lux with IR |
| Shutter Time | 1/3 s to 1/100,000 s |
| Day & Night | IR cut filter |
| Lens | |
| Lens Type | Fixed focal lens, 1.05 mm |
| Focal Length & FOV | 1.05 mm, horizontal FOV: 360°, vertical FOV:180° |
| Lens Mount | M12 |
| Iris Type | Fixed |
| Aperture | F2.25 |
| Depth of Field | 0.1 m to ∞ |
| DORI | |
| DORI | D: 21 m, O: 8 m, R: 4 m, I: 2 m |
| Illuminator | |
| Supplement Light Type | IR |
| Supplement Light Range | Up to 8 m |
| Smart Supplement Light | Yes |
| IR Wavelength | 850 nm |
| HEOP | |
| Open Resources | Memory: 60 MB, Smart RAM: 400 MB, eMMC: 2 GB |
| Computing Power | 1.5 TOPS |
| Open CapabilityHEOP | 1.0 OpendevSDK |
| Deep Learning Structure | Caffe,PyTorch,TensorFlow |
| Programming LanguageC,C++ | |
| Video | |
| Main Stream | 50 Hz: 25 fps/60 Hz: 30 fps: Fisheye View: 2560 × 1920, 2048 × 1536, 1280 × 960 180 Panorama View: 2048 × 1152, 1280 × 720 180 Dual Channel Panorama View: 4096 × 576, 2048 × 288 4PTZ View: camera 01/camera 02/camera 03/camera 04: 1200 × 900 Fisheye + 3PTZ View: camera 01: 2048 × 1536, 1280 × 960 camera 02/camera 03/camera 04: 1200 × 900 |
| Sub-Stream | 50 Hz: 25 fps/60 Hz: 30 fps: Fisheye View: 640 × 480, 640 × 360 180 Panorama View: 640 × 480, 640 × 360 Fisheye + 3PTZ View: camera 01: 640 × 480, 640 × 360 |
| Video Compression | Main stream: H.265/H.264/H.264+/H.265+ Sub-stream: H.265/H.264/MJPEG |
| Video Bit Rate | 32 Kbps to 16 Mbps |
| H.264 Type | Baseline Profile/Main Profile/High Profile |
| H.265 Type | Main Profile |
| Bit Rate Control | CBR/VBR |
| Scalable Video Coding (SVC) | H.264 and H.265 encoding |
| Region of Interest (ROI) | 5 fixed regions for main stream and sub-stream |
| Target Cropping | Yes |
| Fisheye Display | |
| Mount Type Ceiling mounting | |
| Decoding Mode | Support hardware decoding and software decoding |
| Audio | |
| Audio Compression | G.711ulaw/G.711alaw/G.722.1/G.726/MP2L2/PCM/MP3/AAC-LC |
| Audio Bit Rate | 64 Kbps (G.711ulaw/G.711alaw)/16 Kbps (G.722.1)/16 Kbps (G.726)/32 to 192 Kbps (MP2L2)/8 to 320 Kbps (MP3)/16 to 64 Kbps (AAC-LC) |
| Audio Sampling Rate | 8 kHz/16 kHz/32 kHz/44.1 kHz/48 kHz |
| Environment Noise Filtering | Yes |
| Network | |
| Protocols | TCP/IP, ICMP, HTTP, HTTPS, FTP, DHCP, DNS, DDNS, RTP, RTSP, RTCP, NTP, UPnP, SMTP, IGMP, 802.1X, QoS, IPv4, IPv6, UDP, Bonjour, SSL/TLS, PPPoE, SFTP, ARP, SNMP, WebSocket, WebSockets, SRTP |
| Simultaneous Live View | Up to 20 channels |
| API | Open Network Video Interface (Profile S, Profile G, Profile T), ISAPI, SDK, ISUP |
| User/Host | Up to 32 users. 3 user levels: administrator, operator and user |
| Security | Password protection, complicated password, HTTPS encryption, IP address filter, Security Audit Log, basic and digest authentication for HTTP/HTTPS, TLS 1.2, WSSE and digest authentication for Open Network Video Interface |
| Network Storage | NAS (NFS, SMB/CIFS), auto network replenishment (ANR) Together with high-end Hikvision memory card, memory card encryption and health detection are supported. |
| Client | iVMS-4200, Hik-Connect, Hik-Central |
| Web Browser | Plug-in required live view: IE 10, IE 11 Plug-in free live view : Chrome 57.0+, Firefox 52.0+ Local service: Chrome 57.0+, Firefox 52.0+ |
| Image | |
| Image Parameters Switch | Yes |
| Image Settings | Saturation, brightness, contrast, sharpness, gain, white balance adjustable by client software or web browser |
| Day/Night Switch | Day, Night, Auto, Schedule |
| Wide Dynamic Range (WDR) | 120 dB |
| Image Enhancement | BLC, HLC, 3D DNR |
| SNR | ≥ 52 dB |
| Interface | |
| Ethernet Interface | 1 RJ45 10 M/100 M self-adaptive Ethernet port |
| On-Board Storage | Built-in memory card slot, support microSD/microSDHC/microSDXC card, up to 512 GB |
| Built-in Microphone | -U: Yes |
| Audio | 1 input(s) (line in), four-core terminal block, max. input amplitude: 3.3 Vpp, input impedance: 4.7 KΩ, interface type: non-equilibrium, 1 output(s) (line out), four-core terminal block, max. output amplitude: 3.3 Vpp, output impedance: 100 Ω, interface type: non-equilibrium |
| Alarm | 1 input, 1 output (max. 12 VDC, 30 mA) |
| RS-485 | 1 RS-485 (Half duplex, HIKVISION, Pelco-P, Pelco-D, self-adaptive) |
| Reset Key | Yes |
| Deep Learning Function | |
| Heat Map | Yes |
| General | |
| Power | |
| Dimension | Ø119.9 mm × 41.2 mm (Ø4.7" × 1.6") |
| Package Dimension | 150 mm × 125 mm × 99 mm (5.9" × 4.9" × 3.9") |
| Approx. | 320 g (0.7 lb.) |
| With Package Weight | Approx. 510 g (1.1 lb.) |
| General Function | Anti-banding, heartbeat, privacy mask, flash log, password reset via email, pixel counter |
| Storage Conditions | -10 °C to 50 °C (-14 °F to 122 °F). Humidity 95% or less (non-condensing) |
| Startup and Operating Conditions | -10 °C to 50 °C (-14 °F to 122 °F). Humidity 95% or less (non-condensing) |
| Language | 33 languages: English, Russian, Estonian, Bulgarian, Hungarian, Greek, German, Italian, Czech, Slovak, French, Polish, Dutch, Portuguese, Spanish, Romanian, Danish, Swedish, Norwegian, Finnish, Croatian, Slovenian, Serbian, Turkish, Korean, Traditional Chinese, Thai, Vietnamese, Japanese, Latvian, Lithuanian, Portuguese (Brazil), Ukrainian |
| Environment | |

