Recent content by wopi82

  1. wopi82

    Common issues with camera image

    Exactly :) Shutter Priority and Manual mode will work the same, only Manual gives you an opportunity to restrict gain scale.
  2. wopi82

    Dahua T5442TM-AS quick review

    It's a video file (done in After Effects) converted to GIF file in Photoshop.
  3. wopi82

    Multiple camera low light test

    @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)...
  4. wopi82

    Common issues with camera image

    @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...
  5. wopi82

    Dahua IPC-T5442TM-AS-LED review

    @Scale Price is not a good determinant of camera's capabilities. Just read this quick review: Dahua T5442TM-AS quick review
  6. wopi82

    Dahua IPC-T5442TM-AS-LED 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.
  7. wopi82

    Multiple camera low light test

    @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?
  8. wopi82

    Door Checker?

    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...
  9. wopi82

    Multiple camera low light test

    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...
  10. wopi82

    Common issues with camera image

    @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)...
  11. wopi82

    How to bypass video compression in Dahua camera

    @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...
  12. wopi82

    Common issues with camera image

    @Dave Lonsdale What camera models are we talking about?
  13. wopi82

    How to bypass video compression in Dahua camera

    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...
  14. wopi82

    Review-OEM IPC-T2231T-ZS 2mp Varifocal Starlight Camera

    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...
  15. wopi82

    Common issues with camera image

    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...
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