Dahua IPC-HFW7842H-Z-S2 bullet IP camera

8 MP outdoor IP camera with IR illumination. 1/1.8" 8 MP CMOS; motorized lens 2.7-12 mm; compression: H.265+/H.265/H.264+/H.264/H.264B/H.264H/MJPEG; video resolution and frame rate: 8 MP (3840×2160) 25 fps; sensitivity: 0.003 l

5 840 900 UZS

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Codecs

H.265+

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Sensor

1/1.8"

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Power

DC12V

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Lens

2.7-12mm

Specifications

Codecs: H.265+
Sensor: 1/1.8"
Power: DC12V
Lens: 2.7-12mm
Resolution: 8 MP
Protection class: IP67

Field of view and DORI distances

The angles come from the manufacturer’s documentation for this model. A level’s distance is how deep along the camera axis the required pixel density holds; in practice the result also depends on light, viewing angle and video compression. The values may differ from the DORI in the datasheet: manufacturers calculate it by their own method, here it strictly follows the IEC 62676-4 density thresholds.

Lens	Angle H × V	Detect	Observe	Recognize	Identify
2.7 mm (wide end)	112° × 58°	51.8 m	20.7 m	10.4 m	5.2 m
12 mm (tele end)	47° × 26°	177 m	70.7 m	35.3 m	17.7 m

2.7 mm (wide end) · 112° × 58°

Detect: 51.8 m
Observe: 20.7 m
Recognize: 10.4 m
Identify: 5.2 m

12 mm (tele end) · 47° × 26°

Detect: 177 m
Observe: 70.7 m
Recognize: 35.3 m
Identify: 17.7 m

The angles are confirmed by a single manufacturer document and are being verified.

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Description

Dahua IPC-HFW7842H-Z-S2 is a flagship outdoor IP camera, 8 MP (4K), with a 1/1.8" sensor, a 2.7–12 mm motorized lens and multi-format encoding. A resolution of 3840×2160 at 25 fps provides exceptional image detail for reliable identification of objects at a significant distance. A wide range of compression (H.265+/H.265/H.264+/H.264/MJPEG) guarantees compatibility with any video infrastructure. The sensor's high light sensitivity and long-range IR illumination provide a quality night picture at large sites.

Advantages

4K (8 MP, 3840×2160): top-level detail for capturing small details and reliable identification
1/1.8" sensor: high light sensitivity of 0.003 lx — excellent imaging in low-light conditions
2.7–12 mm motorized lens: a zoom for flexible field-of-view adjustment without physical access
H.265+ support: maximally efficient compression of 4K video with minimal load on the network and storage
Multi-format encoding: compatibility with any recorders and VMS
IP67: a sealed housing for reliable year-round outdoor operation

Applications

Video surveillance at critical infrastructure sites requiring maximum detail
Perimeter protection of airports, railway stations, government facilities
Monitoring of large retail and logistics complexes
Video surveillance systems requiring digital zoom without loss of identification clarity

Frequently asked questions

How much does a 4K camera surpass a 4-megapixel one in detail?

8 MP is twice the resolution of 4 MP — when digitally zooming into a frame fragment, identification clarity is preserved significantly longer, which is critical for investigating incidents.

Is the camera compatible with non-Dahua recorders?

Yes, support for ONVIF and several encoding formats (down to MJPEG) ensures integration with most third-party systems.

How much storage will be required for a 4K archive?

With the H.265+ codec the load is significantly reduced compared to H.264, however a preliminary storage capacity calculation is recommended taking into account the number of cameras and archive depth — our engineers will help with this.

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