Dahua DH-IPC-HDW2449T-ZS-IL – Blurry image in strong backlighting (WDR issue)

menyar.kasdallah · Tuesday at 9:11 AM

Hello everyone,

I’m using a Dahua DH-IPC-HDW2449T-ZS-IL camera in a strong backlighting environment. I’ve enabled WDR mode, but I’m facing an issue where the image becomes blurry, especially when there is movement.

Here are the settings I’ve tried so far:

WDR: Enabled
Shutter speed: 1/120
Also tested 1/250, but the blur problem still remains

It looks like WDR is affecting image sharpness in this lighting condition. Has anyone experienced a similar issue with this model or Dahua cameras in general?

wittaj · Tuesday at 9:27 AM

Yes WDR impacts the image quality with movement because of the way WDR works. It is why we try to not use it or keep the number as low as possible.

Most of us will try adjusting every setting to mitigate the light, but if WDR is used, we keep the number low.

bigredfish · Tuesday at 10:34 AM

what are your DNR settings?

Also try H.264.h
8192 bitrate
CBR
General codec

menyar.kasdallah · Tuesday at 10:44 AM

bigredfish said:
what are your DNR settings?

Also try H.264.h
8192 bitrate
CBR
General codec

My DNR settings:

bigredfish · Tuesday at 11:38 AM

Hmm would need to see a clip

Here's a 5442-AS fixed lens in a sever backlight scene. When WDR is off its dark in the carport.
NR 30, Exposure 0-3ms, WDR 50 (it really does nothing under 40) Bitrate 10,240

Its overcast today, usually much worse