Dahua IPC-HDW5442TP-ZE-2712-ATC-S3 4MP WizMind AI Varifocal Eyeball Network Camera (2.7–12mm, Smart IR 40–50m, Advanced Analytics, IP67/IK10)
Unless selecting a vari-focal camera (with an adjustable lens) It is important to select the correct camera lens option for where the camera is to be positioned. A smaller lens will give you a wider angle but will be "zoomed out more", while a bigger lens will narrow the angle down and "zoom in more". See below to give you some idea on angles of Megapixel HD Cameras:
| Lens in mm | Approx Viewing Angle (degrees) | Ideal Distance (metres) | Typical usage/notes |
|---|---|---|---|
| 2.8 | 106 | <6 | For seeing as much of the immediate area as possible such as above a doorway/low down/garage soffits (edges can appear slightly warped/distorted) - clearly "zoomed out" |
| 3.6/4 | 83-90 | <12 | A great general purpose option giving great coverage still in the corner of a room or higher up on second floor soffits with less distortion - more of a natural "zoom" |
| 6 | 56 | 6-20 | Narrows down the angle and zooms in to look past the immediate area a little to gain more detail - down a driveway for example from higher up |
| 12 | 24 | 20+ | Zooms in significantly more to look at a gate, entrance or adjascent building |
| 16 | 19 | 24+ | As above but more so |
The amount of hard drive space you require is dictated by how many cameras, as well as their resolution and frame rate settings. Finally you can often make your storage space last a lot longer by enabling motion detected recording rather than continuous, especially if there are long periods of no activity.
|
Resolution (Megapixels) |
Days of storage provided by 1TB per camera (continuous - full 25 frames per second) |
Days of storage provided by 1TB per 4 cameras (continuous - full 25 frames per second) |
Days of storage provided by 1TB per 4 cameras (50% motion- 15 frames per second) |
|---|---|---|---|
| 1 | 44 | 11 | 36 |
| 2 | 22 | 5 | 18 |
| 3 | 17 | 4 | 14 |
| 4 | 11 | 3 | 9 |
| 5 | 9 | 2 | 8 |
| 6 | 8 | 2 | 6 |
| 8 (4K) | 5 | 1 | 4 |
| 12 | 4 | 0.5 | 3 |
As a rule of thumb we recommend a minimum of 2 Terabytes per 4 x 2-4MP HD cameras, as this should give you 2 weeks to a month with a few adjustments on motion detected recording. You may only require the full 25 frames per second on certain cameras if things are fast moving.
(All of our hard drives come fitted and are CCTV specific from one of the major brands)
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Dahua IPC-HDW5442TP-ZE-2712-ATC-S3 4MP WizMind AI Varifocal Eyeball Network Camera (2.7–12mm, Smart IR 40–50m, Advanced Analytics, IP67/IK10)
The Dahua IPC-HDW5442TP-ZE-2712-ATC-S3 is a 4MP intelligent surveillance camera from the WizMind 5 Series, designed for professional security systems requiring reliable imaging and advanced AI-based analytics. It is equipped with a 1/1.8” progressive CMOS sensor, providing excellent light sensitivity and producing detailed images at a maximum resolution of 2688 × 1520 (4MP). This larger sensor improves performance in low-light conditions and ensures higher image clarity compared to standard surveillance cameras. A key feature of this model is its motorised varifocal lens (2.7–12mm), allowing remote adjustment of zoom and focus after installation. This provides installation flexibility, enabling both wide-area monitoring and focused surveillance without physical lens adjustment.
KEY FEATURES
- 4MP resolution (2688 × 1520)
- 1/1.8” progressive CMOS sensor
- Motorised varifocal lens (2.7–12mm)
- Remote zoom and focus adjustment
- WizMind AI analytics platform
- Face detection and attribute analysis
- People counting and queue management
- Heat map generation
- Perimeter protection (intrusion, tripwire, loitering)
- Human/vehicle classification
- Smart IR night vision up to 40–50m
- 120–140dB True WDR (model dependent)
- AI Scene Self-Adaptation (SSA)
- 3D noise reduction (3D NR)
- HLC, BLC, defog functions
- Smart H.265+ / AI H.265 compression
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