Introduction: Meet the 8MP AcuSense Varifocal Dome
Product:8MP AcuSense Varifocal Dome, 2.7 613.5mm, DarkFighter, IP67 IK10 DS-2CD3786G2T-IZSYShort:8MP AcuSense Dome (2.7 613.5mm, PoE)
The DS-2CD3786G2T-IZSY is a purpose-built 8MP (3840 7216) outdoor dome camera that combines high-resolution imaging, low-light sensitivity and on-board deep-learning analytics. It pairs a motorised varifocal lens (2.7 613.5 mm) with Hikvisions DarkFighter low-light sensor and the AcuSense human/vehicle classification engine to deliver clear 4K imagery while cutting down nuisance alarms. Ruggedised to IP67 and IK10, it supports Power over Ethernet (802.3af) or 12 V DC and offers flexible integration through alarm and audio I/O plus ONVIF compatibility.
Key features at a glance
- Resolution:8 MP (3840 7 216) for highly detailed coverage.
- Low-light performance:DarkFighter technology, colour imaging down to ~0.003 Lux and IR for zero-light situations.
- Smart detection:AcuSense human and vehicle filtering with 1.5 TOPS on-board processing to reduce false alarms.
- Flexible field of view:Motorised varifocal 2.7 613.5 mm lens (approx. 108 646 H-FOV) for quick scene tuning.
- Rugged design:IP67 ingress protection and IK10 impact resistance for exposed sites.
- Connectivity:PoE (802.3af), 10/100 Mbps Ethernet, alarm/audio I/O and microSD storage support.
Detailed specifications and benefits
This section walks through the DS-2CD3786G2T-IZSYs technical highlights and explains what they mean in practice.
- Image sensor:1/1.8" progressive-scan CMOS delivering up to 8 MP resolution (3840 7 216). Higher pixel count means more detail across the scene and greater ability to crop or zoom digitally while retaining useful information.
- Frame rate:Up to 25/30 fps depending on region, providing smooth motion capture for surveillance needs.
- True WDR 120 dB:120 dB True Wide Dynamic Range balances scenes with bright backgrounds and dark foregrounds, such as entrances with backlighting.
- Image enhancement:3D Digital Noise Reduction (3D DNR), Backlight Compensation (BLC) and Highlight Compensation (HLC) improve clarity in difficult conditions.
- DarkFighter:Advanced low-light sensor design supports colour imaging to approximately 0.003 Lux and seamless transition to IR-assisted monochrome at 0 Lux. This ensures identification-level detail in dusk/dawn and near-night conditions.
- IR illumination:Smart IR with illumination up to ~40 m (model dependent) provides effective zero-light capture across medium-to-large outdoor zones.
- Motorised varifocal 2.7 613.5 mm lens:Gives a horizontal field of view of approx. 108 646, enabling installers to quickly adjust framing during setup without physical lens swaps.
- Focus:Auto, semi-auto and manual focus modes for precise image tuning on-site or remotely.
- Mechanical:Compact dome form (approx. 8153.3 mm 7 H111.6 mm) and ~875 g weight; compatible with a range of Hikvision mounts and rain shields for different mounting scenarios.
- AcuSense human/vehicle classification:Deep-learning analytics run on-board (1.5 TOPS) to distinguish people and vehicles from other motion events, significantly reducing false alarms from animals, weather or foliage.
- Video compression & storage:H.265/H.265+, H.264/H.264+, and MJPEG reduce bandwidth/storage use. Onboard microSD/SDHC/SDXC storage is supported (vendor lists up to 256 GB depending on firmware) for edge recording.
- Network:RJ45 10/100 Mbps with IPv4/IPv6, RTSP and ONVIF support for third-party NVRs and VMS systems.
- Power:PoE (802.3af, Class 3) or 12 V DC simplifies deployment options, avoiding the need for separate power runs when PoE switches are available.
- Durability:IP67 ingress protection, IK10 vandal resistance and operating range of approximately 2 30C to +60C means reliable outdoor operation in harsh climates.
Use cases and ideal deployment scenarios
The DS-2CD3786G2T-IZSY is well suited to environments where high resolution, low-light capability and dependable analytics are required. Typical use cases include:
- Perimeter and site surveillance:Large sites with long sightlines benefit from 4K detail and integrated analytics that suppress false alarms while focusing operator attention on true human or vehicle intrusions.
- Car parks and entranceways:DarkFighter performance keeps license plates and doorway activity visible at night, while AcuSense reduces nuisance alerts caused by animals or moving foliage.
- Retail exteriors and storefronts:High resolution helps with identification and incident review; varifocal lens tuning lets you balance overall scene coverage and face-level detail.
- Commercial building façades:Rugged IP67/IK10 housings and PoE simplify rooftop or wall-mount installation with minimal ongoing maintenance.
- Transport hubs and logistics yards:Wide field of view options plus strong low-light capture make it effective for 24/7 monitoring of arrivals, loading zones and access gates.
Comparisons with similar products
When assessing the DS-2CD3786G2T-IZSY against other cameras, consider four main comparisons: resolution and sensor size, low-light performance, analytics capabilities and ruggedisation.
- Resolution:Many competitors in the market offer 2MP or 5MP variants. Moving to 8MP gives substantially more pixels for identification and digital zoom. If your priority is ultra-wide coverage with modest detail, lower-MP cameras may suffice, but for forensic clarity the 8MP option is advantageous.
- Low-light tech:DarkFighter typically outperforms standard sensors and some "Starlight" offerings in very low lux conditions for colour retention and reduced noise. If the site relies on colour at night (e.g., clothing or vehicle colour), DarkFighter-based cameras like this model are preferable.
- Analytics:AcuSense human/vehicle filtering reduces false positives compared with generic motion detection or simpler line-crossing rules. Some higher-end models provide person re-identification or facial recognition; if those specific analytics are needed select a model with those features and confirm privacy/compliance considerations.
- Ruggedness and integration:IP67/IK10 rating and PoE support make this camera competitive with other outdoor-ready domes. For extreme environments (marine, very high shock/vibration), purpose-built housings or higher ingress ratings may be needed.
Customer feedback and installer notes
While individual reviews vary by deployment, common themes from installers and end-users include:
- "Clarity at night is impressive": Installers report the DarkFighter sensor provides useful colour information in very low light, reducing reliance on IR in many locations.
- "AcuSense reduces false dispatches": Security managers note a marked drop in false alarms after enabling AcuSense human/vehicle filtering, particularly where foliage and wildlife previously triggered alerts.
- "Varifocal lens saves time": Many installers highlight the convenience of the motorised lens for quick field-of-view adjustments without dismounting the camera.
Installation tips from professionals include using recommended surge protection, following Hikvisions mounting and earthing guidance, and testing analytics thresholds during commissioning to align notifications with operational needs. Also confirm local compliance (CE / UKCA where applicable) and involve qualified electricians for power and grounding work.
Conclusion: Why choose the DS-2CD3786G2T-IZSY?
The 8MP AcuSense Varifocal Dome DS-2CD3786G2T-IZSY is a balanced choice for organisations needing high-resolution, 24/7 outdoor surveillance with practical intelligence to cut false alarms. Its DarkFighter sensor keeps scenes usable at very low light levels, the motorised 2.7 613.5 mm lens simplifies on-site tuning, and AcuSense analytics focus resources on relevant human and vehicle events. Rugged IP67/IK10 housing and flexible PoE power options further simplify deployment across a wide range of commercial, retail and industrial sites.
For projects where image detail, dependable night performance and operationally useful analytics matter, this camera delivers a strong combination of features for a competitive price point. As always, consult the official datasheet and work with a qualified installer to ensure the unit is mounted, powered and commissioned to meet your site's security objectives.
