Worlds First Review - Dahua - IPC-Color4K-X / DH-IPC-HFW5849T1-ASE-LED - Full Color 4K Camera

[Nunofya]

These S2, S3 versions on all these cameras coming out are probably @Wildcat_1 improved FW updates, lol.

 

[wittaj]

For Dahua, the S designation usually means a different chipset than the previous version of the same model. Conversely, Hikvision adds a C.

 

[Wildcat_1]

These S2, S3 versions on all these cameras coming out are probably @Wildcat_1 improved FW updates, lol.

Haha, thought I missed that didn't you I'm pleased to say that there are some FW improvements making their way into the new S2 / S3 variants, which while based on iterative chipsets do rely on a lot of the same back end algorithms that we've discussed here, fed back and looked to improve

 

[bp2008]

Today i receive Dahua IPC-HFW3841E-AS-0280B
But i have white pixels on my black t-shirt (video watch it on HD or bigger resolution). Video is filmed indoor. Is this broken camera? When film in dark no bad pixels.

I haven't seen anything like that happen to a normally functioning camera. So I assume the sensor is indeed a little bad. Edit: But others say it is normal for this cam...

 

[wittaj]

Today i receive Dahua IPC-HFW3841E-AS-0280B
But i have white pixels on my black t-shirt (video watch it on HD or bigger resolution). Video is filmed indoor. Is this broken camera? When film in dark no bad pixels.

Nope, that is just some overzealous pixels trying to provide an image on something all black. It is documented in this thread and the 4K/T thread this phenomenon with the full color cameras trying to push the limits.

 

[wittaj]

Here was one thread/post showing this that on a black image they show up, but not on a green, thus it isn't a dead pixel, just a few overzealous pixels trying to produce an image in what it thinks is a dark environment.

Review-SD4A425DB-HNY 1/2.8" CMOS 4MP 25x Starlight Auto-tracking MiniPTZ

I started tweaking my new It may be dead pixels, but could also be the new firmware getting a little aggressive trying to make a visible image and a few pixels went rogue. We saw this with the 4K/X when it first came out in lower light conditions. It would be interesting to try it with light...

ipcamtalk.com

 

[wittaj]

I maked new video with better light but white dots still there. They are few but still there. On dark with IR the camera is well.
You tell me all Dahua models have white dots? Camera is not broken? Ok how to avoid cameras with white dots effect. I don't want to film colorful in dark. I want to film dark with IR. I bought this camera for the spec: 8mp 4k resolution, 25-30 fps and to film with IR.
Now I'm wondering if I should keep it or return it. The camera is 194 euros and these points annoy me. And for that much money, I want a camera that can shoot without white dots.

What camera do you have? The 4K/X does not have, nor can it see infrared.

What is your end goal for these cameras? They are surveillance cameras, not go pro or cameras for Hollywood movies. A few overzealous pixels trying to overcompensate for a dark area is not going to break the ability to get a capture of a perp breaking into your car. The other option is for Dahua to tweak the camera to be more sensitive to light and thus would be a much darker image and not perform as well at night to stop a few overzealous pixels.

And if it is for pornhub, I doubt people would notice

 

[wittaj]

Dahua IPC-HFW3841E-AS-0280B
IPC-HFW3841E-AS-S2

IPC-HFW3841E-AS-S2 - Dahua CEE Region

IPC-HFW3841E-AS-S2

www.dahuasecurity.com

That is a totally different camera than this thread. That is a budget camera that is 8MP on the 1/2.8" sensor designed for 2MP, whereas the camera in this thread is 8MP on a much larger 1/1.2" sensor. Please no more posts in this thread about a different camera than this thread is about.