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    Dahua HFW1831E Focus?

    Thanks for the inputs. The focus is probably good enough so I'll leave it alone for now. I bought these on eBay from a guy (not Andy) in Hong Kong. I intended to order from Andy (eventually) but it was a late-night impulse purchase. By all outward appearances the cameras and packaging look...
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    Dahua HFW1831E Focus?

    I just got two 1831s for overwatch at my house. I had them up side-by-side (before mounting) to set up IPs, etc. I notice the image from one camera is noticeably sharper than the other. Is it practical to adjust the focus of these things?
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    How much power does an NVR use?

    Data point: I just bought a new 27 in led monitor which consumes 25 watts when on (and next to nothing in standby). So a monitor uses almost as much power as a computer.
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    How much power does an NVR use?

    See my posts: Reolink IP Cameras and Reolink IP Cameras Short answer is 10-15 watts for NVR (plus cams if PoE). A late-model commercial PC will be 30-50 watts. A DIY PC may be be a lot more. Monitor is extra but will normally power down when not actually in use. Maybe you need a newer PC...
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    Pandemic threat? Anyone else concerned?

    One of the great advances in modern medical science was the application of statistics to sort out what really works and how well.
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    Pandemic threat? Anyone else concerned?

    If this breaks out in some of the homeless encampments in US sanctuary cities it will become a serious problem. Otherwise, I think most of the US is in reasonably good shape. The draconian measures taken by the Chinese government indicate things there may be worse than we are told. Back in...
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    Reolink IP Cameras

    IPC-HDW5442TMP-AS ? How is IPC-HDW5442TMP-AS different from IPC-HDW5442TM-AS ?
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    Reolink IP Cameras

    As far as I know B400 and D400 will ONLY work with a Reolink NVR. I screwed up a while back and bought a D400 by mistake. I'll find a use for it some day, maybe as a paper weight. I don't know about "old" firmware but sounds plausible.
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    Reolink IP Cameras

    I have several RLC-420s (and a 411) running on Blue Iris 5. No magic here. Just let BI FIND/INSPECT the cam or manually select "Reolink 410/411/420/422/425 BASELINE RTMP" in the setup script (or in camera settings/Video/configure). Possibly older versions of BI didn't work with Reolink but I...
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    Reolink IP Cameras

    I don't have a hoodie (dark or otherwise) but here are stills of me walking to the cameras. Both starlights and the Reolink failed to dim as I got very close and my image was very overexposed when I got within about 5 ft (guessing at distance). The 4631C-A actually adjusted exposure correctly...
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    Reolink IP Cameras

    I set up four cams on my front porch for a side by side comparison. The Cams are: 5MP Reolink RLC-420, Dahua HDW5442TM-AS, Dahua 2231T-ZS, and Dahua HDW4631C-A. The C-A is a cheap ($60) hacked Chinese model. The 5442 is a 4MP starlight (about $150) and the 2231 is a 2MP starlight with zoom...
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    Dahua HAC-HDW2802T-A or HDW4631C-A

    I should add that my front porch (where these photos were taken) is very dark.
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    Dahua HAC-HDW2802T-A or HDW4631C-A

    I mounted a Reolink RLC-420 and Dahua HDW4631C-A, HDW2231T-ZS, and a HDW5442TM-AS cameras side by side to compare them. The Dahuas had default settings. They all worked well in daylight but the 4,5, and 6 MP cams showed better detail if I zoomed in (digitally) on the image (as expected). But...
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    Has anyone tested the "IPC-HDW5541TM-AS"?

    I too would be interested in feedback on this model. I have a couple of locations where the greater vertical view angle (relative to horizontal) would help a lot.. Sensor size is only one factor. The highly-regarded 5231 camera has a 1/2.8 in sensor (but 2 MP, not 4 or 5). I don't see if this...
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    Is all QuickSync created equal?

    Be sure to check it out. I have an HP8300 with the i7-3770 chip, a decent CPU and it does have Quick Sync. BUT the Win 10 Intel driver for this chip does not support Quick Sync and I don't want to go back to Win 7.
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    Are junction boxes necessary for camera installs?

    I use a box where I don't have direct access to the space above the ceiling (or wall) and need to run surface wiring to the camera (through conduit). Half inch conduit is fine but most boxes have 3/4 inch threaded holes so you need a reducing bushing to 1/2 inch. Wire mold works too except...
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    Reolink IP Cameras

    Maybe so, but I paid $68 for the hacked HDW4631C-A and $175 for the nice T5442TM-AS, both on Amazon. OK, so not 3 times (only 2.6).
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    Reolink IP Cameras

    Taking this as a challenge, I realized that speed-step only works in the Power Saver profile. Choosing PS profile my average power dropped from 49 watts to 36 watts. CPU speed slowed from 3.4 GHz to 1.6 GHz but I'm still using only 20% of the CPU according to BI and only 10% according to task...
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    Reolink IP Cameras

    I wanted to see for myself how the hacked low-end camera compared to a high-end one from Andy that cost almost three times as much. And I did. Education isn't cheap but I'll find somewhere suitable for that cheap IP cam. I know what i-frame is but I don't understand why it's important to be...
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    Reolink IP Cameras

    Here's another power consumption data point for Blue Iris on my i7-3770 box. . I replaced the mechanical 7200 RPM (system) hard drive with a SSD and added a 4TB WD red drive for image data. The power consumption dropped 1 watt (from 50 to 49 watts).
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    Reolink IP Cameras

    Reolink is low-end and Fenderman seriously dislikes the brand. My Reolink Cameras and NVR misbehaved badly until I updated all the firmware a few months ago. Other than I-frame the current Reolink firmware fixed a lot of things. Now, my cams and NVR work well in a mixed-brand setup EXCEPT the...
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    Reolink IP Cameras

    Out of curiosity, I used a Kill-A-Watt to measure power consumption of two NVRs and one PC running Blue Iris 24/7. HP i7-3770 PC: 50 watts with one hard drive Reolink RKN8-410-E : 12.7 watts with one hard drive (no POE loads) Amcrest NC4108-HS ...
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    NVR4XXX-4KS2_MultiLang_V4.000.0000001.1.R.190830.zip

    To answer my own question, this firmware appears to work fine in my Amcrest NV4108-HS NVR and it looks like a significant improvement.
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    NVR4XXX-4KS2_MultiLang_V4.000.0000001.1.R.190830.zip

    Does anyone know if this software will work in an Amcrest NV4108-HS NVR?
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    30-40 sec delay Reolink Wired Cams

    I had a similar symptom with several Reolink cameras that showed (burned-in time) 25-30 sec behind real time. That delay was constant no matter how I viewed those cameras (web browser, Reolink/Amcrest/Dahua PC client, or direct from NAS). It turned out that, even though each Reolink camera was...
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    Hello from Rural NC

    Yankee: Thanks for your insight and advice. With latest firmware the Reolink and Amcrest NVRs both work correctly when connected directly to a monitor and mouse (although the Amcrest NVR willl only decode 3 cameras on replay). But the current PC clients (and direct log-in) are show-stoppers...
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    Reolink IP Cameras

    I have several RLC-420 5M "eyeball" cameras and (with the latest firmware) they perform well in daylight and with the (visible) built-in IR illumination. Low-light performance is not on par with Dahua Starlight models; but I live in a rural area where night lighting never exceeds full moon so...
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    Hello from Rural NC

    Yankee: Thanks for the welcome and advice. I may stick Blue Iris on one of my PCs just to see what I'm missing. It is cheap enough to just try. With all cameras going through a POE switch (and a KVM switch) I can do easy side-by side comparisons between NVRs and clients. I appreciate the...
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    Hello from Rural NC

    Thanks all for this site; I found much great information here despite the occasional vitriol. I am working on a six-camera exterior setup for my home (2-front door, 2 back door, and 2 side over-watch) . This is partly a hobby and partly a way to get evidence in case of a break-in. Before I...
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