shdes

Do you know covert pinhole ip camera is now 1080p with 0.001 lux low light capability and even cloud access inside it (like the following picture). My question is. Why is the pcb circuits in the bullet camera (like dahua's) so large? why cant they miniaturize it like the pinhole pcb? For 24/7 viewing.. what is the disadvantage of pinhole vs bullet cctv (provided both are well ventilated)? Let's discard the lens benefit because the pinhole circuit can be outfitted with zoom lens too. And remember an Intel chipset now once took an entire room. So why didn't dahua or hikvision miniaturize the circuits? Most important. Please share the picture of the pcb circuits of your dahua, hikvision, axis or any you picture you can find we can know how large or small the circuits really is.

Just add a wireless access point into the existing network. You should be able to connect to either the camera IP or the NVR IP through that. Lets say my dahua NVR is connected to a router with wifi... the camera is located in another building 7 meters away. If I connect the camera to the access point with say ip address 192.168.1.5. Will the NVR see it as one of the camera in the search menu? Or should I connect the router with wifi to the camera and the access point to the NVR? What is usually the case. I have zero experience in access point and want to have rough idea before buying any access points. Thanks.

Btw.. when you use normal NVR like dahuas.. can it see the wireless ip camera via the router wifi (provided it can connect ok using lan meaning onvif compliant)? Or do these wireless ip cameras can only be viewed by its special CMS only and completely invisible to normal NVR like dahua?

Yes.. what you described is how they are connected. But the wifi module is bad. I open the case ip pinhole camera inside which void the warrantee because I was curious what it look like (the lan so far worked in my nvr) and I can't return the camea to china because shipping cost is too high and may get lost. Anyway. Please look at the two attached pictures of the wifi module (front and back). Do you know what the yellow and white wire do? I know the black and red is power and the separate black is antenna. What kind of wifi module is this (what are the different kinds).. any idea where this can be bought in the US or in wifi module stores? Tnx

Hi, What kind of smallest 12 volts battery is there available to power a wireless mini ip cam that can be hidden anywhere? Do I have to get normal 9 volts battery plus 3 AA 1.5 volts battery and series them to form 12 volts? Lead rechargeable batteries would be too big. Is there commercially available rechargeable 12 volts battery?

http://lmgtfy.com/?q=how+many+hours+can+a+motorcycle+style+lead+acid+researchable+battery+last+and+how+is+this+computed I mean how to compute a bullet camera power usage if powered by such researchable lead battery. For instance, the bullet camera is 5 watts.. does it consume 5 watts for one sec, one minute or one hour? Anyone?

For a typical ip bullet camera standard size (say 5 watts consumption).. how many hours can a motorcycle style lead acid researchable battery last and how is this computed? Thanks.

Do different switches brands vary in qualities being faster or slower? What to look for. I want to connect my ip cams to external POE switches instead of internal NVR poe ports.. but it appears the external switches are not as fast.. what do you think?

Are there external switches that is even faster than the dahua built-in internal nvr poe port switches or are the latter already the most ultimate switch directly connected internal to the nvr processor for complete stability and efficiency? Any got any experience on this? Or to rephrase the above. If you use external switches.. would it be faster than the existing built in poe ports or the same speed no matter how expensive external switches you use?

Are there external switches that is even faster than the dahua built-in internal nvr poe port switches or are the latter already the most ultimate switch directly connected internal to the nvr processor for complete stability and efficiency? Any got any experience on this?

Hi, How does the Dahua 4K Ultra HD ip camera perform in terms of contrast and image quality in normal and low light? And how much can it be acquired and where (the bullet model IPC-HFW4800E)? Thanks.

while researching different covert or mini ip cams at alibaba, I read some are ONVIF but none standard. But isn't it ONVIF are supposed to set standard.. so what does none standard ONVIF mean? for one I think it means it can't be run in Hikvision, dahua NVRs that are ONVIF..

The other thing being sold locally is something smelly... Someone's yanking your chain. IR illuminators work fine with IP cams that have movable IR filters. The one that doesn't work is tested using IP cams that have no built in IR. So the answer may be it has fixed IR filter. How about those dahua mini PTZs (like the following) without any built in IR. Does its sensor have movable or fixed IR filter. How do you check? http://www.dahuasecurity.com/products/sd32203s-hn-807.html

I just went to a CCTV shop.. all their concealed and very small size camera that you can hide in the corner are analog 700 TVL.. they don't have any IP models... what is the smallest ip cam you have come across? what smallest is theoretically possible within the limit of current cctv ip technology. I also inquired about their IR illuminator.. they said it's only for their ccd analogs.. anyone know why it won't work on an IP cmos camera? What is the IR range in the sensors between the analogs and ip cams and and/or between the cctv ccd and cmos? Anyone got a clue?

In http://www.amazon.com/gp/product/B00KA4M4WS/ref=s9_simh_gw_p421_d0_i3?pf_rd_m=ATVPDKIKX0DER&pf_rd_s=desktop-1&pf_rd_r=1Z7FG4M2G62ADG6GN5ZR&pf_rd_t=36701&pf_rd_p=2079475242&pf_rd_i=desktop I read the first user comment: "* ONVIF support is non standard and none of the normal ONVIF tools such as the ONVIF Device Config tool support it." So you are saying instead of "ONVIF support is non standard". It's more right to say "There is no ONVIF at all"?

Anyone know when dahua would make 25 fps 4K instead of just 7fps? Or won't they make it at all so I can decide just to get the 3mp for now (instead of waiting it). Btw.. external IR illuminators sold locally can only work with the analogs ccd.. anyone got a clue why the IR illuminators is invisible to the IP cmos?

In quality, just how good is the hikvision compared to other china brand mini covert ip cams? Most importantly.. which doesn't and does work with say the dahua NVR? because I read some brands even though ONVIF can't be recognized by dahua NVR. Does none-standard ONVIF even makes sense when ONVIF is supposed to be a standard? What do you make of this.

My dahua NVR offline alarm is stable when all cams are connected to the internal POE ports.. but when I use external poe switches.. there are times it sets off the alarm by being offline a split second. I wonder if switches have qualities in that between similar say 100 Mbps brands, the better brands like Dlink are better in stability than none-brand generic china made poe port switches? what protocol in same 100 Mbps switches that can affect stability?

I've googled a lot about top201 but can't find info if it is compatible with any NVR (dahua specifically). Does ALL mini ip cam with onvif compatible with ALL NVR with onvif?

I noticed the dahua 4K is only 7fps.. how bad (or still good) is 7fps? Would you rather have 25fps 3mp? Is there anyone a PRO member of the following who can share at least a summary of how the dahua 4k perform in say low light? http://ipvm.com/report/dahua-4k-test To find out, we tested Dahua's HFW4800E against 4K cameras from Axis (P1428-E) and Bosch (Dinion 8000) in full light, low light, and WDR scenes to see how they compare. The complete report is available only to PRO Members. I'm a pro member, it did pretty well (smashed the axis) still don't like it for a running thief in the garage.. what would identify more.. a 7fps 4k camera or 20fps 3Mp camera or 30fps 1080 camera (let's say all dahua)?

I noticed the dahua 4K is only 7fps.. how bad (or still good) is 7fps? Would you rather have 25fps 3mp? Is there anyone a PRO member of the following who can share at least a summary of how the dahua 4k perform in say low light? http://ipvm.com/report/dahua-4k-test To find out, we tested Dahua's HFW4800E against 4K cameras from Axis (P1428-E) and Bosch (Dinion 8000) in full light, low light, and WDR scenes to see how they compare. The complete report is available only to PRO Members.

Why have you never used PTZ_HD-CVI? You mean you only use PTZ IP based? In my country, there are only dahua PTZ HD-CVI (see http://www.dahuasecurity.com/products_category/ptz-camera-489.html). There is no PTZ IP (because these are more expensive).

What would resolve or produce better image at low light, a 30X optical zoom HDCVI 2mp or a 12X optical zoom IP cam 2mp? Noting IP cam being said to produce more superior image quality than HDCVI cam. Just how bad is the HDCVI?

But we are not yet sure if it's the no-brand generic sensors dahua used in the fixed lens HDCVI. Have you also tested the PTZ Hdcvi (which uses the exmor sensor)? same color fading?

No. Don Stephens tested IP side by side with HDCVI using short cable. I also saw it at the showroom. The HDCVI are more faded in colors. Don himself wrote: viewtopic.php?f=53&t=40736&hilit=hdcvi+quality&start=15 "There's a color difference between their IP and CVI. The IP cameras appear true to color while CVI is slightly "grayed" for a lack of better word. Other than contrast, they look pretty similar." "You can really only see the change in contrast on the building across the parking lot where the cameras transition. It's a dull area as far as color is concerned. It gets much more obvious when you look at brighter colors." ---------------- If you guys will compare IP side by side with HDCVI. the HDCVI are more faded in colors even with short length cable so it is not the cable. I wonder if it is the poorer sensors dahua themselves made in their fixed lens HDCVI. However, note their PTZ zoom HDCVI uses the sony exmor lens. Anyone has tested this lens. Is the color better or still as faded as their fixed lens HDCVI?