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    Dahua 4K PTZ DH-SD8A820WA-HNF

    Can we convince you to put it on a 60' tower so you can see everything that happens within 4 miles of you?
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    IR "halo", how to fix?

    Maybe also try going out there at night, and use a towel to completely cover the camera, and then watch the recorded footage to see if the reflection / artifact goes away once the camera becomes blocked from it surroundings by the towel. And then if it does, you could move the towel slowly at a...
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    Milestone Alarm Input / outputs - digital i/o

    Your explanation is missing a key step. The fence system closes a dry contact, but the missing link is: how does Milestone become aware of this dry contact closure? Depending how it becomes aware of it, the process for configuring Milestone to activate a PTZ preset will vary. As rsox...
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    Milestone Alarm Input / outputs - digital i/o

    I'm a bit confused by your use case. These perimeter sensors & security lighting you mention.. presumably you want to receive these field devices to sense some condition, and then Milestone to become aware of that sense trigger in the form of a Milestone Input, right?
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    Vivotek models with 2MP 1/2.8" sensors?

    The few times I've played with them, I always found them to be quality cameras. Perhaps a little more 'conventional' or 'mainstream' than the Dahua and Hikvision options. Perhaps between a Bosch and a Dahua as far as the software/firmware/interface.
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    Anybody tried getting rid of the plugs?

    I think the 12v plug is used by some here when they use an external microphone. They use a PoE power splitter just before the camera connection to send power to both the microphone and camera.
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    What focal length am I viewing?

    This was discussed this week in another thread.
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    What's with the temp display?

    Looking at it the other way, why would anyone want the camera to report the ambient temperature? You didn't buy a weather station, you bought a camera.
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    is there any common tool to reset all types of ip camera forgotten passwords

    Pretty sure you have to press the button on each camera.
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    Night Images Of An 8MP 4K Camera With A 1/2.5 Sensor And A 1/1.8 Sensor Compared

    Clearly the top image is more washed out, with brighter blacks. So the bottom image 'looks' better. But for CCTV purposes, I don't think there is any quantifiable difference between them. Both show the same detail near and far, on dark and on bright surfaces.
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    New IPcamtalk forum --> now my Chrome won't stay logged into forum

    Deleting cookies as per the link works in my Chrome, thx. I have stayed logged in.
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    New IPcamtalk forum --> now my Chrome won't stay logged into forum

    Every time I come back here since the forum upgrade a few weeks ago, I have to log in. I have the "stay logged in" checkbox checked. Using Chrome and Win10.
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    Review: Dahua IPC-EW5531-AS 5MP Fisheye Camera

    Welcome to the joys of using fisheye/360 cameras. This is definitely one place where a quality VMS can justify its expense, as they handle this very well.
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    Holy 60x Zoom Batman! Dahua SD10A260WA-HNF

    13kg! I wonder what the objective lens diameter is. Pretty wild that they can do 60x zoom. Does anyone know the still photography market, are 60x varifocal lenses a thing?
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    I was right all along, Dahua IPC-HDW4831EM-ASE - Don't follow the 4K Hype

    Another interesting test would be: set the 4k camera to 1080p resolution and compare it to the native 1080p camera.
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    Which PTZ for mounting on the top of the pole?

    For true 360 unobstructed you need something like a Pelco Esprit. A regular dome will always be obscured by its mounting pole because they have to hang from something. The Esprit design has the added benefit that it can look upwards to very high angles, again besting the functionality of a dome...
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    I was right all along, Dahua IPC-HDW4831EM-ASE - Don't follow the 4K Hype

    Did you try digital zooming on the image, to see if any benefit is realized there?
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    Cheapest Hardware for Milestone

    Did you check this page? Milestone Systems product system requirements
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    180 degree camera recommendations

    I have a fair bit of experience with the N68BR4V and some competitors like the Hikvision and Bosch in similar generation. In my testing I've found that on these 6MP generation of 180/360 single imager cameras, the image quality when digital zoomed is practically unaffected by turning down the...
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    Cheapest Hardware for Milestone

    Which Milestone XProtect license are you planning to buy?
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    Onvif firmware bug(?) in IPC-HDW5231R-ZE (latest firmware)

    Perhaps this requires more stick and less carrot. Contact ONVIF consortium, tell them a product advertising ONVIF Compliance is in fact not compliant. They might have a system to force resolution in one direction or the other.
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    Outdoor PTZ recommendation

    For a deployment that is only viewing daytime footage, and only via a metered data connection, I would suggest considering only powering the camera on a schedule. You could use some form of remote IO relay or configured timer relay to limit the camera's power to only certain times. Perhaps you...
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    Need help with bench testing cameras

    I've ran a few NVRs without a HDD. They worked fine, connected and displayed cameras.
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    Long Distance POE

    To mitigate risk, maybe bury both a CAT6 and a RG6? Then you can try both plain ePOE and the coax media converters, and also get the benefit that you could run power via one cable and data on the other if you have power problems.
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    Fish Cam - Underwater Camera Question

    Just throwing this out there without research or hard facts. But putting a camera underwater surely changes things like focus distances, focal length, field of view angles.
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    Noob question: where are the IR LEDs in this camera?

    Here are photos taken with my Galaxy S8 of a couple Dahua cams.
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    Noob question: where are the IR LEDs in this camera?

    How'd it go?
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    Noob question: where are the IR LEDs in this camera?

    If you have one, walk up to it at night and use your smartphone's camera and point the camera right at the CCTV camera, you should see the CCTV camera's lights as bright lights on your smart phone's display.
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    Dahua Camera with water flush

    As looney says, use the camera's alarm output wires to electrically trigger your external device.
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    Is this Peak IP Camera?

    I'm starting to get the feeling that we've hit the peak of the IP camera market. We've had some pretty huge jumps in performance in about the last 6 years. Common resolution went from 0.3MP to 4MP. Built-in infrared emitters that match the camera's ability to resolve an object at distance are...
    • adamg
    • Thread
    • Replies: 3
    • Forum: Dahua
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