Dahua Europe IP network camera 8MP HFW2841T-ZAS

Camera

Image Sensor

1/2.7" CMOS

Max. Resolution

3840 (H) × 2160 (V)

ROM

128 MB

RAM

256 MB

Scanning System

Progressive

Electronic Shutter Speed

Auto/Manual 1/3 s–1/100,000 s

Min. Illumination

0.008 lux@F1.5 (Color, 30 IRE)
0.0008 lux@F1.5 (B/W, 30 IRE)
0 lux (Illuminator on)

S/N Ratio

>56 dB

Illumination Distance

Up to 60 m (196.85 ft) (IR)

Illuminator On/Off Control

Auto; Manual

Illuminator Number

4 (IR LED)

Pan/Tilt/Rotation Range

Pan: 0°–360°
Tilt: 0°–90°
Rotation: 0°–360°

Lens

Lens Type

Motorized vari-focal

Lens Mount

?14

Focal Length

2.7 mm–13.5 mm

Max. Aperture

F1.5

Field of View

H: 113°–31°; V: 58°–18°; D: 138°–36°

Iris Control

Fixed

Close Focus Distance

0.8 m (2.62 ft)

DORI Distance

Lens

Detect

Observe

Recognize

Identify

W

85.3 m (279.86 ft)

34.1 m

(111.88 ft)

17.1 m

(56.10 ft)

8.5 m

(27.89 ft)

T

280.0 m (918.64 ft)

112.0 m

(367.45 ft)

56.0 m

(183.73 ft)

28.0 m

(97.86 ft)

Intelligence

IVS (Perimeter Protection)

Intrusion, tripwire (the two functions support the classification and accurate detection of vehicle and human)

Smart Search

Work together with Smart NVR to perform refine intelligent search, event extraction and merging to event videos

Video

Video Compression

H.265; H.264; H.264H; H.264B; MJPEG (Only supported by the sub stream)

Smart Codec

Smart H.265+; Smart H.264+

Video Frame Rate

Main stream: 3840 × 2160@(1–20 fps)/2688 × 1520@(1–25/30 fps)
sub stream: 704 × 576@(1–25 fps)/704 × 480@(1–30 fps)
*The values above are the max. frame rates of each stream; for multiple streams, the values will be subjected to the total encoding capacity.

Stream Capability

2 streams

Resolution

3840 × 2160 (3840 × 2160); 3072 × 2048 (3072 × 2048); 3072 × 1728 (3072 × 1728); 2880 × 1620 (2880 × 1620); 2688 × 1520 (2688 × 1520); 3M (2048 × 1536); 2304 × 1296 (2304 × 1296); 1080p (1920 × 1080); 1.3M (1280 × 960); 720p (1280 × 720); D1 (704 × 576/704 × 480); VGA (640 × 480); CIF (352 × 288/352 × 240)

Bit Rate Control

CBR/VBR

Video Bit Rate

H.264: 32 kbps–8192 kbps
H.265: 12 kbps–8192 kbps

Day/Night

Auto(ICR)/Color/B/W

BLC

Yes

HLC

Yes

WDR

120 dB

White Balance

Auto; natural; street lamp; outdoor; manual; regional custom

Gain Control

Auto; Manual

Noise Reduction

3D NR

Motion Detection

OFF/ON (4 areas, rectangular)

Region of Interest (RoI)

Yes (4 areas)

Smart Illumination

Yes

Image Rotation

0°/90°/180°/270° (Support 90°/270° with 2688 × 1520 resolution and lower)

Mirror

Yes

Privacy Masking

4 areas

Audio

Built-in MIC

Yes

Audio Compression

G.711a; G.711Mu; PCM; G.726

Alarm

Alarm Event

No SD card; SD card full; SD card error; network disconnection; IP conflict; illegal access; motion detection; video tampering; tripwire; intrusion; audio detect