IPC-HDBW4631E-ASE poor picture

[Gilera]

My brother just bought the above camera - fixed 2.8mm lens. Surprisingly bad picture once you get about 7-8m away. Good up close. Would have expected much better from 6MP. My 2MP cameras have better picture at distance. I thought that it could perhaps be improved by focusing but these seem to have a fixed focus - is this correct?

 

[mat200]

My brother just bought the above camera - fixed 2.8mm lens. Surprisingly bad picture once you get about 7-8m away. Good up close. Would have expected much better from 6MP. My 2MP cameras have better picture at distance. I thought that it could perhaps be improved by focusing but these seem to have a fixed focus - is this correct?

HI @Gilera

Wide angle FOV quickly dilutes the pixel density.

Below are the Dahua specs on this camera. Note their calculated Identify is 7m. Dahua is typically more generous than we are on this. ( we like to use 100 ppf - pixels per foot when calculating ID distance )

IPC-HDBW4631E-ASE
6MP IR Mini Dome Network Camera
> 1/2.9” 6Megapixel progressive scan STARVIS™ CMOS
> H.265&H.264 triple-stream encoding
> 20fps@6MP(3072x2048), 25/30fps@4MP(2688x1520)
> Smart Detection supported
> WDR(120dB), Day/Night(ICR), 3DNR,AWB,AGC,BLC
> Multiple network monitoring: Web viewer, CMS(DSS/PSS) & DMSS
> 2.8mm fixed lens (3.6mm optional)
> 1/1 Alarm in/out, 1/1 audio in/out
> Max. IR LEDs Length 30m
> Micro SD memory, IP67, IK10, PoE

Lens Type: Fixed
Focal Length: 2.8mm (3.6mm）
Max. Aperture: F1.6 (F1.6)
Angle of View: H: 98° (69°), V: 67° (48°)

Close Focus Distance

0.9m (1.7m)

DORI Distance
Lens || Detect | Observe | Recognize | Identify
2.8 mm || 69m(226ft) | 28m(92ft) | 14m(46ft) | 7m(23ft)

 

[fenderman]

Just wait for the night image, then he will really experience poor picture.

 

[Gilera]

Just wait for the night image, then he will really experience poor picture.

Ha! He's pretty annoyed. I told him the 2MP would be better at night but he really wanted it mostly for day and went higher res thinking it would be better for distance with digital zoom.

 

[fenderman]

Ha! He's pretty annoyed. I told him the 2MP would be better at night but he really wanted it mostly for day and went higher res thinking it would be better for distance with digital zoom.

There are cameras with higher resolution that would be much better at night, this is not one of them. Sometimes you gotta learn the hard way.

 

[EMPIRETECANDY]

Just return it, and if he prefers dome, go to check IPC-HDBW2831R-ZS, 8MP starlight.

 

[Gilera]

Yeah but he lives in remote Australia, probably cost half the cost of the camera to return it. Will suggest the alternative though cheers.

 

[EMPIRETECANDY]

Maybe use this camera indoor, or some other place where have good light.