** ********* ******** ****** ********** *** *****, but *** ****** ************* ****** *** years. ***, **** ***** *** ********* have ******* ******** *** **** *** options.
** ****** *** ****** *** *** and *** ******* *** **** ** see *** **** ******* ********** **** *** *******, *********:
- *** *** ****** **** *** ****? Is ***** ********** ***** ** ****** connecting?
- *** **** ***** ******* ******* ** similar ** ******? *** *****? ***?
- **** ** ****** *** ** ******* does **** *** *******? ***, ***, AHD? *****?
- *** ** ****** ************ *** ******** features *******?
- ** **** ********* *** ***** **** VMSes?
- *** ** ******** ******* ** ** cameras? *** ***** ****** *********?
*** *** ******** ******* ******.
*******/********* ******:
*******
** *** ******** ****, *** *** and *** ****** ********** **** ********* to ***** ********** ******, **** **** n **** ***** ********* ** *****, only ***** *** ***** ***********. **** Dahua *** ********* *** ********* ******** competitively *** ******** ******** ** ** cameras *** ** ******** ***** ***** capability.
*******, ** *** ******** *** ****** in *** *****:
- ***** *****:**** ***** *** ********* *** ***/*** cameras ********* ********** ********* *** ********* muddy ** *******. ***** ****** *** quality *** ******* ****** ** ***** issues, **** ****** ********* ******* ********** of ***** ****, ****** ** ** 500m ** ***.
- ********* **** ***:*********'* *** *** ******'* *** *********** was **** ***** **** ** ******, with ******** *** ********** ************* ****** out ******** ** ******.
***************
***** ** *** *****, *** **** likely *** *** *** ***/*** ****** is ******** ** ******** ****** *******, a ******* ******** ************ **** ** 2019. ***** ****** ******* ** ******* from ***** **********, ****** **** **** clarity **** *********** ** ***********.
*** ************* *** ****** ****** ****** by ** *******/****, ******* ********** ****** pricing, ***** ***** ********** ** ***** quality, ******* ***, ****** *********, ***.
*******
*** ***** ******* *** *** **** camera (~$*** *** ******) ***** *** about **** *** ***** ** *** IP ********** (*******), ***** ***** *** ~$260 ******. *******, ********* *** *** camera ******* ** ****** ** ***** to ** ********, ~$*** **. ~$*** for *** **-*********-*.
*** **** **** *** ~$***-*** *** 8 ******** (*** ********* **** *****), shown *****.
- ********* **-********-**/*-*** *-******* *** *** *** with * ** ***:~$*** *** ******
- ***** ******* *-******* *** *** *** with * ** ***:~$*** ******
Physical ********
***** *** ********* *** *** *** cameras *** **** ******* ** ************ to ** ******, **** *** **** difference ***** ***** ***** *******, *** vs. ***/********. ***** *** *** ******* differences ** ************:
- ********* ******* *******:*** ********* *** ****** **** ******* for *** **** *** **** ** the ******* ********, *** ******** *** the ****** "*******" *******. ** ********, Hikvision ** ****** (** **** ** Dahua) ** *** ******** ************. **** plastic *******, ****** **** ** *************, is ****** **** ****** ** **** apart, ***** **** *** *****, ***.
- ***** ********** ***/***/***/**:*** ***** ******* *** ****** ******** DIP ******** ** *** ***** **** which *** ** **** ** ****** the ****** **** *** (******) ** AHD, ***, *** ** ******, **** a *** ********** ** *** **** using ***/***. **** ** *** ***** on *** ********* ******, ***** ** TVI ****.
** ****** ***** *** ***** *********** in **** *****:
**** *** ***** *** ********* **** are ******* ** ************ ** **** models, **** ** ********* ******* *******, and **** ******* **** ******* ** older ****. ***** ****** *** ****** BNC, **** *** ******** **** ** ports: ********, ****/***, */*, ***.
Not **** ** / *** ** *** **********
***** ***** ******* *** **** *** frequently ******** ** "**", **** *********** cannot ** ********** **** ******* ********* ******* ** *** ** higher, ********* ** ***** ******** ** used. **** ***** *** ********* ******* 15 *** *******. *******, **** **** not **** ********* **** ****** ******* the ******'* ********* ******.
8MP **** * **** / ******* ** *****/****
**** ***** ********** ***/*** ******, *** models ****** ****** ******** ***** *** BNC ***** ***********, **** ***** **** within * *** ******* ** **********. There *** ** ********** ***** ** negotiation ******** ** ****** ********** ******.
******* **** ***** * ******* ** negotiate *** ***** *********, ***** *****:
Image ******* ******** ** **
** *** *** ***** **** ******, both ***** *** ********* *** ****** models **** ********** **** ***** **** 8MP ** ********, **** **** ********* and *****/******* ******.
*** *******, ** **** ***** (~**'/~** PPF), ***** *** *** *** *** models ******* ***** ****** ** *** subject's ****, ** ****** ******* *** clearer. **** ***** **** ** **** more ******* ** *** ** *******, down ** **** */* ******* ** 5/6 ** *** ** ****** ******.
** ****** ********, ***** ****** ****** much **** ******** (~**'/~** ***), **** the ******* ************** ** *** *** and *** ******, *** ***** ****** details ***** ***** ** ** *******.
** ***** (~*.* ***), *********** ******* HD ****** *** ** *** **** similar, **** *********** *** ** ************ more *********** ******.
******* *** ** ***** (***/~**'), **** Dahua ****** ****** ********** *** *******. However, *********** *********** ******* *** ********* TVI *** ** *** *****, **** the ******* ******* ** *** *** IP *****, *** ********* ******* ** the *** ******.
Hikvision **** ***
*******, ** ****** **** ******* ***** capability ******* ** **** *** ****. All ****** ****** ***** **** *** capability, ****** ** *** ****** *** by ******* ** *** *** *** TVI ******* *** ******* *** *** menus.
*********** ******* *** ***** ******* *** similar, ****** ******** ****** ** *** IP *****. *******, *** ********* *** TVI ****** ********* ***** ** **** scene, ************ *** ******* *** **********, while *** **-*********-* ********* **** (** in ****** ********).
DVR ****** *******
**** ***** *** ********* **** ******** other ** ****** ********, ********* *** and ***, ** ** * *** resolution ** ***. **** ******* **** their *** ******** (*** *** *****, TVI *** *********) ** *** **********, and **** ******* ***** ** *******.
*** ***** ***** ************ * *** camera ********* ** *** ***** *** DVR:
VMS ***********
** ** **** ***** ** ** analog ****, *** ***** *** ********* *** models ******* ***** ******, ****** *** not ****** ** **********. *******, *********** of *** *** ****** ****** ****** widely, **** ** *** ********** ****, and ********* *** ********** ******. **** that ** *** ***** ****** *** as *********, ****** ***** ****** *** officially ********* **
Versions ****
*** ********* ******** ******** **** **** in **** ****:
- ***** *******:**.***.*******.*.*.******
- ********* **-********-**:**.*.***************
Comments (26)
Undisclosed #1
Sounds like the HD Analog protocol has hit the wall. I give them credit for getting to 8MP at all.
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Steve Beck
Did IPVM consider testing 5MP TVI/CVI cameras along side these 8MP cameras? That seems to be the next step up from the 2MP/TVI cameras HIK/Dauha and the distributors are pushing.
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Undisclosed #1
Whatever became of PoC?
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Adam Devereaux
A relevant comparison / review would be of Dahua's ePoE solution that can drive IP cameras over coax. I am assuming the majority of the market for these HD Analog cameras is re-use of existing wiring, which ePoE can solve as well.
I personally have utilized Dahua's HD-CVI cameras with a Dahua Tri-brid X58A3S (or is it penta?) NVR. For that install the N84CL52, A22AH9Z, A42AR2 and HAC-PFW3601-A180 were used. I was impressed with the N84CL52 and A22AH9Z, less so with the other models. We also had issues with the N84CL52 ("4K") actually showing up with the NVR, we had to connect via our tester or set it to AHD and use the OSD to move to a lower resolution. Still haven't resolved this, as I don't show a newer firmware for the X58A3S available. Though the customer is happy with the picture quality at the lower resolution anyway, 4K wasn't a requirement. Another thing I was not prepared for was the sheer massive size of the PFW3601-A180. This thing is just not viable for internal use based on it standing out like a sore thumb.
In retrospect I would not have gone down this road, I would have recommended the client pay for new wiring or perhaps test ePoE IP cameras. Something people need to be aware of is the input voltage requirements for the HD-CVI cameras within Dahua's line can vary. The existing power supplies were 24V AC, however the A42AR2 cameras run of from 12V DC only.
We also ended up having to use some Dahua Baluns for some of the A22AH9Z cameras, which require 24V DC input to then output 12V DC. So needless to say this caused some confusion and hassle with multiple power types present in the system now (24V AC, 24V DC and 12V DC depending on the camera and wiring).
So I'd love to see IPVM test the ePoE line of equipment from Dahua!
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Undisclosed #1
Ethan, does the IP camera show more detail in the background section or is the cross hatching pure artifact?
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Andrew Del Biondo
Freedom VMS client supports both the Dahua and Hikvision recorders via the manufacturers private protocol. Certain Dahua Pentabrid recorders are are also supported as encoders for recording of SD analogue, HD-CVI (up to 4K), HD-TVI and AHD cameras on Freedom VMS server.
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Ryan O'Daniel
Maybe I'm missing something but it seems your Hikvision DVR model is listed as the wrong model number.
The model you have listed, DS-7208HUI-K2, supports only up to 5MP TVI cameras. However, the link at the top of the article links to the DS-7208HUHI-K2 which supports TVI cameras up to 8MP as well as CVI, AHD, and Analog cameras.
The real question is which DVR were these tests done on? If you have the model number of the DVR correct I'm guessing it scaled down the cameras from 8MP to 5MP which would make this comparison invalid.
Specs for the DVR you have listed as being used in the test:DS-7208HUI-K2
Specs for the actual 4K HD-TVI recorder: DS-7208HUHI-K2
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Ryan O'Daniel
What about the lack of support for CVI and AHD section of this article? That's no longer true with the corrected model.
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saleh alsabih
02/12/19 06:03am
1. How is it really true the resolution 8Mp or even 4Mp. i mean is there a mean to verify what is claimed in a datasheet of a camera?
2. With an IP cam and Cat cables it is logical to be able to transmit higher resolution as the medium is digital (0s & 1s) so correct me if am wrong how is it possible to do the same over Coax (tvi cvi ..etc) which is Voltage based and bandwidth is limited not to mention interference and disruption chances are high?
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Dennis Ruban
From my experience, the biggest advantage of the analog cameras is a real-time live picture. Sometimes, 1-2 sec delay that IP cameras have is not acceptable, so we go with analog
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