Don Stephens
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Everything posted by Don Stephens
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Do Hikvision IP cameras work fully with Dahua NVRs?
Don Stephens replied to slopolytech's topic in IP/Megapixel Cameras and Software Solutions
Dahua DH-IPC-HDBW4300E: The body is constructed from heavy aluminum; absolutely no plastic on the outside. The dome itself is essentially a plexiglass type material. Dahua states it's IK10 rated, but I still don't know how much I trust that rating system. We just finished testing it. For what it's worth, it's a solid camera. -
Dahua POE IP camera keeps restarting - help!!
Don Stephens replied to slopolytech's topic in IP/Megapixel Cameras and Software Solutions
Yep, its the model number listed on the eBay page...but then again that might be my answer right there The camera picture looks amazing, day and night. The camera build quality seems very good and came in a full Dahua branded package, but then again, counterfeit Dahua cameras look pretty legit. I don't claim to know everything and I've been surprised (aka wrong ) more times than right, but I'm a little sketched out just based on what I'm seeing in my search results. I can still recall my first summer job of checking IDs at the beer tent which taught me that anything that says "genuine" is usually not. Now, that being said, Dahua has been booting a good number of models off it's site for a couple months now and I wouldn't be surprised if it's just a model they've decided not to carry forward; or a model number they've changed. It does look like a slightly older design that Dahua has discontinued. "The camera build quality seems very good." That says something right there too. The real deal with those models is solid and heavy...real heavy. You can usually feel out a fake Dahua. -
Alright, I was really hoping I'd be familiar with the model but I'm not. I've plowed through a lot of dual voltage box/brick cameras and nine out of ten times I'd tell you that you're good to go, but in this case, I'd wait for another opinion. Sorry.
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I wanted to update this thread real quick since I haven't seen anyone post any low light images yet for HDCVI. I've posted a couple screenshots before showing how CVI compares to IP in daylight conditions. The easiest way to describe the difference between them was that CVI presented itself well as far as clarity was concerned but the contrast always seemed to be faded when compared side by side with IP. Low light is kind of nasty as I see it. If you haven't seen the previous images, on the left we have a Dahua IP 2MP Aptina sensor at 3.6mm, and on the right is a Dahua HDCVI 2MP "DH5000" sensor (presumably) at 3.6mm. The ambient lighting outside is significant enough that the IR boards to remain off. The only advantage the CVI camera seems to have here is the amount of noise going on in the image. That being said, I haven't touched the settings on either camera yet. I'll add that I also have a Dahua 2MP IP PTZ (no IR) out there right now as well with a Sony sensor and the amount of noise is about dead even between that and the HDCVI camera.
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You need special baluns; I can promise you that. The standard passive video baluns I've tested with this stuff have produced video, but only at a fraction of what it's supposed to be.
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Need a ethernet over coax converter that does POE
Don Stephens replied to cavcom's topic in IP/Megapixel Cameras and Software Solutions
I'm going to have to steal these links. I've been aware of these for awhile but I've never personally had a need for them. How are they on the wallet? -
Can we get the camera model?
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Dahua POE IP camera keeps restarting - help!!
Don Stephens replied to slopolytech's topic in IP/Megapixel Cameras and Software Solutions
Is that the correct model number? I don't recognize it and I can't find on Dahua's site. I do see it for sale on a lot of Chinese sites claiming how "genuine" it is though... -
recommendation for 8 channel dvr in $300-500 range
Don Stephens replied to mrstevie's topic in Digital Video Recorders
Hikvision and Dahua both meet your app needs. They also both come with software to bypass the need to use any browser. I can't even remember the last time I used the browser to access a Hikvision system, but I know Dahua is still whoring itself out to the ActiveX plugin as far as IE is concerned. Both manufacturers are compatible with all of the browsers you mentioned one way or the other. -
Unable to upgrade either with configTool or USB with bin's
Don Stephens replied to tng5737's topic in Digital Video Recorders
Was it 3800 or 38000? I wish I would have seen this earlier; I could have pointed you in the right direction and dropped what you needed in your lap. -
recommendation for 8 channel dvr in $300-500 range
Don Stephens replied to mrstevie's topic in Digital Video Recorders
I feel like I'm talking to Sony right now. Is this Steve Mosko? -
recommendation for 8 channel dvr in $300-500 range
Don Stephens replied to mrstevie's topic in Digital Video Recorders
What do you mean by "firmware that can be hacked"? Can you explain why you "need" the system to be browser accessible? Why not just use dedicated software? The problem is that everything is going to require plugins in the browser. I know for a fact that the KT&C models do so I don't know why they even suggested it based on your requirements. Are you against plugins or just ActiveX? If you're willing to drop the idea of browser access, you potentially open yourself to a whole range of Hikvision and Dahua models in your price range. -
Opinion on $100 DONGJIA 5MP IP Cam (TI DM368 + Aptina 9P006)
Don Stephens replied to wildfins's topic in IP/Megapixel Cameras and Software Solutions
100% accurate. -
It makes sense that someone would produce something intended for the tech, but I'll believe it when I see it.
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I've seen a lot of gimmicky sales pitches where people claim that you can. I know that CVI will work with them, but at a degraded quality. I've only tested one TVI camera with them with similar results, but that was a garbage camera and I'm not going to claim they're all the same. AHD is a total mystery to me.
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The 4K resolution translates to be about 8 megapixels (3840x2160). There are IP cameras out there with more than 3 times that resolution. And then there's the 18K : http://www.studiodaily.com/2014/04/so-you-think-4k-and-8k-look-good-behold-this-18k-camera-platform/
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You'd need a "hybrid DVR" to use your old cameras with an HDSDI DVR. I honestly don't even know if they make them anymore. If they don't, alternatives to HDSDI are HDCVI and HDTVI. Hybrid models are readily available for CVI and TVI. I don't have a good taste in my mouth with HDSDI so I can recommend anyone with any confidence. For HDCVI and HDTVI, stick with Dahua and Hikvision. Personally, I wouldn't touch Night Owl or Lorex with a ten foot pole and gloves on.
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"The guy" is wrong in regards to image quality, but correct as it relates to every other aspect of the technology. I've got a couple 4K cameras sitting here waiting to be tested but I haven't had time to get to them yet. I will be posting some samples and info on them once I get the chance. As of right now, I happen to think it's a stupid sales gimmick. The industry has long surpassed the 4K resolution.
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This is off there specs: "Shutter Speed NTSC: 1/60 sec - 1/120000 sec" That being said, unless they're lying, it can be changed somehow through the OSD. I would play around with the shutter rates first before trying to solve a problem you may not have after getting the shutter rate correct for the area you're focusing on.
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Anyone tried these Q-see HD Analog systems yet??
Don Stephens replied to jazzgtrl4's topic in Security Cameras
The 4300E doesn't (or didn't) have any kind of shield to force that heat coming from the sun to dissipate or prevent it from beating on the camera all day long; the end result was the cameras began to overheat and shutdown. Mounting it under and eaves/overhang solves the problem immediately. I meant to mention this before, but do not take my word for it when it comes to those numbers/angles. I'm positive our own tests are accurate, but those tests are based on products that we received. I can think of multiple reasons those numbers can change from person to person. -
You're definitely correct about HDCVI degrading over CCA. I can honestly say though that these guys are using solid copper. I know because they made me sell it to them against my advice Are you very sure about your source for the full copper RG6? Over the years, I've learned to assume that anything that comes from China is a lie (sorry China). For that reason, everything is verified when it comes into our warehouse, and again before it leaves; this includes cutting into cable to ensure it's what it's supposed to be.
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Unable to remote access Dahua IPC-HDB3200C
Don Stephens replied to xbmcnut's topic in IP/Megapixel Cameras and Software Solutions
This is mind boggling to me because the LAN/WAN options are what I see over 80% of the time when logging into any Dahua recorder. I've never had any issues so I've never bothered looking into it. I have no idea if it's model or firmware dependent or somehow related to internet service. This is the second time this issue has been posted within the last week and a half. I would love for someone to post a proven solution or answer/clarification to this if they have any; the other thread went nowhere last time I checked. -
Opinion on $100 DONGJIA 5MP IP Cam (TI DM368 + Aptina 9P006)
Don Stephens replied to wildfins's topic in IP/Megapixel Cameras and Software Solutions
I'm a bit skeptical about those video samples. According to them, the max frame rate is 10fps at 5MP. Maybe I'm starting to lose it, but those clips hardly appear to be recorded at 10fps, or some very meticulous video editing was done. If they're faking the video to sell the camera, that's enough for me to shop elsewhere. Looking passed that, I'm not seeing anything forthcoming regarding the image sensor. Considering that plays the biggest role in performance and cost, I like to get that information before handing my money over. -
Anyone tried these Q-see HD Analog systems yet??
Don Stephens replied to jazzgtrl4's topic in Security Cameras
Did you remember reading the angle of view they are providing are diagonal and not the horizontal or just a guess? The angle of view is the only thing stopping me from getting the 3MP. In the square parking driveway. there is still a 5 degrees hidden area where the robber can hide so 90 degree seems critical. Also I assume the 4300S has similar sensor characteristic as the 4300E (the one available in my country in another package but all specs the same). http://www.dahuasecurity.com/products_category/3-megapixels-325.html I didn't read it anywhere but they like to flex their numbers by using the diagonal only instead of listing both the horizontal and vertical; same concept as what sellers do when advertising a TV. The only Dahua IP cameras that exceed a 75 degree horizontal are the ones using the Sony sensors, and I went through some pretty painstaking efforts to be able to say for a fact that those Sony sensors tap out at 80-82 degrees. Having said that, I've never known any camera of any type to claim a true 90 degree horizontal with a 3.6mm lens. I've had to drop in 2.5mm lenses on a number of occasions to achieve a full 90 and that's much easier said than done in some cases. Like you said, the specs are the same between the 4300S and 4300E. I've never tested the 4300E so I have no room to talk about it with any authority. I will say that I have tested other cameras with that body style though and they did just fine as long as you kept them out of the sun for prolonged periods of time. -
Dahua dvr/nvr Mail, totally unable to work
Don Stephens replied to aurmol's topic in General Digital Discussion
The reason I don't use the email notification option is because of the delay. Sometimes you get them instantaneously, and other times it takes twenty minutes. The push alert notifications through the mobile apps have always proved to be much more consistent and reliable for me...as long as it's working. I'm going to have to go back and see what I did last time. I'll take a screen shot.