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Issue 6 seems to be a matter of bad camera focusing. Your 4K-X looks like it is soft at infinity. The 4K-T looks fine.

4K-X is at this moment the best on the market. Read the review of it here: https://ipcamtalk.com/threads/dahua-color-4k-x-in-depth-review.58999/

@CCTVCam Extra tests? I haven't added anything else since publishing this review. I've expressed myself wrong. I don't think the 4K-X was the worst on COLOR out of all three cams, but it was definitely not the best one. Yes, the sentence "To me the 4K-X wins in all modes." shouldn't be there...

@CCTVCam You are right. I did it because I compared these camera as a whole, not just sensors itself. Thus all parameters matter. Resolution also. If this was only sensor comparison, I would have to omit for example lens brightness. The fact that 4K-X is better at night than 5442 and 4239...

Hi everyone, today I present you a review of recently announced Dahua Color 4K-X camera. This is a 4K resolution model with ultra bright f1.0 lens and huge 1/1.2” sensor. The combination of bright lens and such big CMOS, promises excellent image quality both in broad daylight as well as at...

Hi guys, Today I present you a review of Dahua T5442T-ZE. This model is equipped with 2.7-12mm zoom lens and an excellent 4 megapixel 1/1.8 inch CMOS sensor. Compared to 5442TM-AS-LED and 5442TM-AS models, which I’ve already reviewed, this one has twice as much RAM available. The housing is...

I hate to hear my recorded voice. And my spoken language really sucks. Just turn down the volume if you can't stand it ;)

@john-ipvm Sure I've seen them. Otherwise I wouldn't dare to give an opinion. You've got plenty of tests and reviews, but to me these are superficial. The thing is, you never go beyond your procedure. It's always... this camera is behaving like this in our hall test, and like this in our another...

Hi everyone. It's over 3 years I've joined this forum. During this time I had a chance to learn a lot from other users experience, as well as share some of my knowledge. My reviews of Dahua cameras, gained great interest from all of you. Common Issues Guide also had a lot of positive feedback as...

Exactly :) Shutter Priority and Manual mode will work the same, only Manual gives you an opportunity to restrict gain scale.

It's a video file (done in After Effects) converted to GIF file in Photoshop.

@Riclyo I think this is kind of self explanatory :) Your eyes work the same way. The less light you have, the less detail and color you see. At very low light levels you can only distinguish shapes and no color (due to human eye structure, first you lose ability to distinguish color)...

@wittaj It's exposure time (shutter) expressed in milliseconds instead of fractions of a second. One second is 1000 milliseconds (ms). And so 0.5 of a second is 500ms, 1/100s is 10ms, 1/1000s is 1ms and so on. If I set shutter parameter to a fixed value like 40ms, the camera will only use a...

@Scale Price is not a good determinant of camera's capabilities. Just read this quick review: Dahua T5442TM-AS quick review

@Scale If you really need white light LED, take this one. Otherwise I would definitely choose TM-AS model with ICR. My latest Low light test compares exactly the two sensors you are considering. 5442 is clearly better.

@Arjun Everything not mentioned in the description was set to default. So all image settings were at 50% value. Noise reduction was also set to 50%. @Riclyo What do you mean? Can you please rephrase the question?

Flicker from street lamps is a problem indeed. I'm also experiencing it with my street lamp. I don't think there is any reasonable solution to it, other than using slower shutter speeds - which is of course opposite to what I wrote in common issues. But that's the only thing that comes to my...

Corona virus is spreading all over the world, and so we're all forced to stay home. Here in Poland all shopping centers, schools, kindergarten, playgrounds, etc. are closed. So, together with my wife, we have to find way, to do our regular job, and take care of children. It is time consuming and...

@Dave Lonsdale This is, what you have in your cameras: SD3282D-GN 1/3" 2MP HDW4221EM 1/3" 2MP SD22204T-GN 1/2.7" 2MP SD29204T-GN 1/2.7" 2MP HDW4300C 1/3" 3MP starlights HFW8231E-Z 1/2.8" 2MP (IMX290) SD59225U-HNI 1/2.8" 2MP (IMX290) HDW5231R-ZE 1/2.8" 2MP (IMX290)...

@gijsv There is plenty of tutorials on the Internet. For example, this one: In some cases the new firmware may lock all IVS functions. I’ve updated the firmware in my HDW5442EM-AS LED and since then, all IVS functions are completely dead. @RubberDucky I had exactly same observations. The...

@Dave Lonsdale What camera models are we talking about?

Currently I’m testing Dahua IPC-HFW7842H-Z. Hopefully the review will be ready soon, but there is still plenty to do, and I have to find time to put all material together. Anyway, while testing the camera, I’ve found something I was thinking about since my first Dahua I bought. That is, how to...

That's right. You have given very precise values. Due to these diferences the 5442TM-ASE has 113 degrees h-fov for 2.8mm lens, while 5241TM-ASE has 106 degrees for the same lens. Actually, when I calculated fov difference for both sensors, it came out bigger than Dahua is claiming. If one is...

Here is a quick guide to what might go wrong with the image of your cctv camera, and how to fix this. MOTION BLUR: This is probably the most common issue, new camera owners run into. Many times on this forum I've seen posts like: "I bought a set of cameras recently. The image looks great on...

@bigredfish @DavidR1 I've edited the post. I messed up with webpage settings. My browser forced me to European version of the page, which I didn't notice. For over a month I thought they were deleted. I didn't see also any new products :banghead: @DavidR1 Thank you for additional info...

Hi folks. I bought a set of T5442TM-ASs from Andy, so here is a quick review of this model. This camera is identical to T5442TM-AS-LED, which I reviewed here some time ago. The only difference is that this one owns infrared LEDs instead of white light LEDs, and has an ICR (removable IR filter)...

Smart IR is not controlling gain in this case. It's the gain itself. In first example your face got washed out, because gain went down from 50 to 0 and the camera didn't have chance to go any lower. Try this: turn off smart IR - set a fixed value like 100% for IR, set exposure to 0-16ms (the...

Ok, so it works. But in my opinion, it's still exposure modification, even when everything is locked. In the last example from the backyard, notice illuminated bushes in far background. When you appear in the image these bushes also get darker. If it was just IR reaction, these bushes would stay...

@bigredfish I was looking for such description before posting the thread. So Dahua is claiming it should work. Can you please set one of your analog cameras to 1/30s, lock gain to one value, turn off any backlight functions, set SmartIR sensitivity to 10 and than provide a video example? I'm...

From your examples it looks like it's actually the exposure reaction, not smartIR. If you have locked these cameras at 1/30s it might be the gain changing. Notice how background lights dim when somebody appears. If it was just smartIR, the lights wouldn't change its brightness.