buellwinkle

Yes, sorry, the Philips set screw is what tightens this by spreading the pieces inside. On other Dahua bullets it's an Allen screw. But I feel you pain. I resorted to drilling one of their larger bullets and putting a piece of metal to keep it rigid when it wouldn't tighten anymore.

It is very narrow so you are probably correct. I tried these before where they claim 60 degrees and it had a decent spread of light. Just wish they lasted longer. http://www.amazon.com/vision-Infrared-Illuminator-Camera-visual/dp/B008JSLJEG/ref=sr_1_9?ie=UTF8&qid=1378864747&sr=8-9&keywords=263%27+ir+led

Don't know but I've tested them with Exacq, Synology and Milestone and camera based motion detect works fine with the D & E series when setup as ACTi cameras (not via ONVIF). For what it's worth, I turned ONVIF on my E32 with the latest firmware and ONVIF returned that it's using version 2.0 of ONVIF despite that the brochure that says 2.2. It may still be 2.2 and it's returning the wrong code.

If it's all going through your router, then the router can be bad. Also, isn't it warm in NYC now, the heat wave we had here last week, we sent to you guys. Maybe it's causing minor power fluctuations that are causing the issues.

There has been various discussions on my blog and people have gotten it to work with NAS4FREE with specific settings and manual tweaks. I have not personally tried it but their website is http://www.nas4free.org/

Besides the 4 screws that hold the 2 halves of the shaft, there's another allen screw on the opposite side that you tighten down to hold better. Not the best system I've used, but it holds the monster sized HFW3200C and never had a problem for it holding the HFW2100.

Just get an illuminator with a wider lighting angle, maybe one setup for 70-90 degrees. This one didn't spec out what it is, so you have assume with the claims of going 300-400', it's likely a narrow angle, 45 degrees at most.

You forwarded the 3 required ports and it still doesn't work, that can't be good. Are you trying to access it using your WAN address at home, because some routers block this. One way is to have someone outside your network run a port scan, I use nmap, to determine if those 3 ports are truly open as sometimes what you think is open is not because of other issues. I have the playback tab on the cameras that have SD card storage, like my IPC-HFW3300C. It was introduced in the May firmware release.

Having a fast upload bandwidth is half the equation, you could have a fast connection but with poor latency which would give you the same effect of dropped frames, poor frame rate and such. Also, you could have an Ethernet cable issue, so swapping camera on the same wire could help troubleshoot. Are you other cameras behaving better? Remotely, I would try lowering the resolution and frame rate to D1 and 10fps and see if that fixes the issue, then you would know if it's a network issues. Also, from within your LAN at full resolution/frame rate it should be good. I have a few Dahua, but actually have one of these, the IPC-HDW2100, does pretty well for in low light, but I get IR LED light bleed at night which surprised me for a camera with flat glass. They have been reliable with my oldest one over a year old. I used to live in Long Island in Great Neck, pleasant area.

I wrote an article about this watching your cameras from any TV using an Android mini-computer and an app. I also use a tablet that I can move around to where I want to see the cameras like in the bedroom if we hear something we can get the tablet up and running with the cameras displaying faster and less conspicuous than a TV.

ACTi NVR3 shows all the timeline with the recording marked on the timeline for all cameras being played back. Milestone shows a timeline for one camera, the one selected so you would have to click on camera to see it's timeline, but it's fast. There may be a way to see all timelines for each cameras at once, but haven't found it. Synology Surveillance Station, like ACTi NVR3 shows the timeline for all the cameras being played back.

I've had good experience with using inexpensive IR illuminators from Amazon, work really well, unfortunately, the 2 I had died, one lasted about 2-3 months, one lasted about 5-6 months. If I ever buy again, I would make sure they have a good warranty.

40 network cameras is not as easy as putting them on one NVR. Even Milestones NVRs are limited I believe 16 cameras and 400fps at 1MP which is not even 30fps for all 16 cameras. I'm afraid if you get one of these Dahua or Hikvision NVRs, not sure you'll be able to support 40 cameras at their native resolution or frame rate. Even displaying 40 cameras on one screen may be possible but not practical. So depending on the resolution and desired frame rate, for something this large, I would look at the Milestone NVR, maybe get 3 of them. If it was me, I would get a good server like an HP Proliant DL380, dual socket, 16 or 20 cores, 4GB RAM, 4 GigE NICs, 16 drive chassis and run Milestone XProtect Pro, Exacq or Avigilon NVR software.

I typically keep mine at 68% sensitivity and 6% motion during the day and 65% and 7% at night.

Like I said, about 30% with 8 cams half 2 3MP, 2 1080P, 4 1.3MP and I have an older quad core, pre-i7.

Have you priced it yet?

So what you are saying is don't use Aver software? Because all the NVR software I played with, short of BlueIris shows timelines on multi-camera playback. It's really awesome, you slide the timeline and multiple cameras go on/off as you slide it and you see all that's happening as fast as you want to slide the time line.

Day mode actually looks better to me that night mode with IR. Can't you just unplug the LED ring?

No, you got yours from the original batch that was imported. The one I have has V5.0.0 build 130719.

Yes, that is the Derytech model # from GSS, but where you got it from actually buys them from a sub-distributor that GSS sells to, but they all came from the same exact batch of cameras.

I agree, very good value for the money for home users, small amount of cameras. To me synchronized multi-camera playback is key. Take Maxicon who prides himself on having 2-3 cameras together to form one 180 degree view, imagine trying to play that back one camera at a time, not practical.

You are looking in the wrong place, what you need is a wildlife camera used for hunting where the 850nm leds would annoy the wildlife. It's hard enough finding what you want with 850nm, but Brickcom makes then, but not under $250 and not 940nm.

I tried to test your theory and changed the video quality from full to medium and frame rate from unlimited to medium, and monitored the CPU and it stayed the same. I tried restarting Smart Client, same thing, about 30% CPU for me, 8 cameras. This is Smart Client running on a different PC than Milestone server processes but same LAN. Am I missing something?

Used to get them from gsscctv.com, if you go to their website, click on the logo for Derytech, it takes you to Derytech.com. Maybe they screwed up, IDK. Is that not correct?

Tomcctv, you are correct, there are two Derytech companies, both from what I've been told are based in Taiwan, but the link from the distributor goes to the .com site which is not built yet.