*******
*** ***** *** ********* models ****** **** *** solid ***** ******* *** those ******* *** >***** performance *** ********* ****** focus *** **** ******* in ***** **** ******. While **** **** ** a ~$*** ******* **** fixed **** ** ******, they *** ************* **** expensive **** ****/**** ***** with ******* *********** (****, true ***, **, ********* zoom), ~$*** ****** **. an******* ** ****** ~$***.
*******, **** **** *********** in **** **** *** WDR ****** *** ******** improved **** *** **** models, ****** **** ***** and ********* ***** ****** slightly ** *** ***** compared ** **** ********* bullet *******.
***** **. *********
*** ***** ******** ************ the ********* **** ** our *****, **** **** even ** ******** ********* in ****** *** ***** performance, ******** ****** *** imaging, *** ****** ***** due ** ** ***** buttons/remote ********* (**** ******** the ********* ***** *****).
*******, *** ********* ****'* bandwidth *********** *** * fraction ** *** ***** 4MP ***** ** *** tests *** ** *** inclusion ** ***** *.***+ smart *****. ******* ***** may ** ************* ***** because ** **** **** using *** ********* ******.
Key ********
**** *** *** *** findings **** **** ****:
- ** **** ****** ** view (~**'), *** ***** 5421 *** **** ****** performed ******** ****** **** Hikvision's *** ********* **** equivalent (****), **** **** even ******** *** ****** chart **********.
- **** ***** *** ********* zoom ******* ******** ******** more *******/**** ***** ******* than ***** ********** ***** lens ****** ************ ** wide ****.
- ** ******** ****** ** view ***** *** ** higher (~** ** *** 4MP ******), ******* ** all *** *** ****** were ******* ** **** light.
- ** *** ***** (~*.***), the ***** *** **** camera ********* ****** **** the ********* **********, ***** had * **** ****** center ** *******, **** darker ** *** ***** of *** ***.
- *******, **** **** ******* were ************ ** ***** by *** *** **** bullet ******, ***** ******** slightly ****** ****** ** the ******* *** **** clearer **** **********.
- *** ***** **** ******** zoom ******* ******** ** the ******, ** **** as * ********* ***** output, ***** **** ****** and ******** ******. ********* includes *** ********* ******, but ** ******** ******** on *** ******.
- *** ********* **** ******** remote ***** *** ****, but **** *** ******* autofocus. *****'* *** ********* model ****.
*******
**** *** ***** ***-******** and ********* **-******* **** for ~$*** *** ******, roughly ***** *** ***** of *** **** ****** models, ***** **** *** ~$130-150 (****** **** ********* zoom).
*******, **** ***** ** ~60% ***** **** *** average ***** ** ******* zoom ******, ~$***.
Physical ********
**** ******* *** ***** average ***** *** ******* domes, **** *** ********* 2742 ********** ******* **** the ***** ****. ******** of **** *** ******* with *** *** ******:
- ***** ******** **** *******:*** ***** ****** ******** physical ******* ** *** camera *** ****/**** **** control. ********* **** ***. In *** ***** (**** and ******) ** ***** that ***** ******** ***** aim *** ***** ****.
- ********* "******" ******:*** ********* ****'* ****** "clicks" ** *** ****** is ******. **** *** make ************ ****** *** some, ** ** **** not ******* ************/************ ** screws ** *** *** camera. *******, ****** *** find *** ****** *** far *****, ******** ******* aiming ** *** ******.
** **** * **** at ***** *** ***** issues ** **** *****:
Focus/Zoom ********
***** **** *** ****** tested ******* **** ******, there *** **** *** differences ******* *** ***:
*********: ** *********
***** ** *** ********* 2742 ** ****** **** via *** *** *********. The "********* *****" ****** found ** *** **** view **** *** ******* autofocus ** ** **** in ***** ******.

*****: ******** **** *******
** ********* *****, *** Dahua **** ******** ******** zoom ******** ** *** camera ******, *** ******* focus ** *** ****** was ****** **/***. **** simplified ****** *** ******** compared ** *********, ** everything ***** ** ********* at *** ******, ******* of ********* *** *** interface ** *** ****/*****.

Daytime ***** ******* **********
** ******* ******* ** a **** **** ****** field ** ****, ~**'.

******* ********* ** *** cameras ** **** *** level *** *******, **** slight ********* ** ***** due ** ************ ** both ********* ******. *** high *** ***** ***** is ***** **** *** reference / ********** ******** against ******* ***** ********** models.

** **** ****** ** a ******** ***** ** view, ~**' ****:

** **** *** *****, details ** *** *** cameras *** ****** *** similar.

Integrated ** ***********
*** ** ******* ** the ***** **** *** even ****** *** **** field ** **** ** our *****. *******, *** Hikvision **** *** * strong ****** *** ****, moderately ************ ********, *** was **** **** ****** the ***** ** *** FOV. *** ********** ******* the *** ** **** in *** ********* *****:

** **** ***** *****, with ** **, **** zoom ****** ******* ****** details **** ***** *** cost ****** *********** *** to ****** *******. **** that **** ******* **** remotely ******* ****** *** after ********* ** ***** mode.

WDR **********
** ****** *** ** a ********* *****, ******* strong ********* ** **** as ****** *****:

*** ***** ******** **** model ******** *** ********* details ** **** *****, in **** *** ****** and **** ***** ** the *****, **** * slight **** **** *** Hikvision ****. **** **** models' *** *********** *** similar ** ** ******** better **** ***** *** cost ****** ************.

Bandwidth **********
**** ********* ****** ** this **** ******* ******.***+ ***** *****, ********* ** **** lower ******* ******** **** competitive ***** ******. *** Hikvision *** ****** *** the ****** ******* ******** of ******* ** **** test, ****** *** **** zoom **** *** ***** much ***** **** *** Dahua ****.

Test **********
*** ******* **** ****** using ******* ******** ****** otherwise *********, **** *** following ******* ** *** cameras:
- *.***, ** ***, ~** quantization *** ****
- */*** ******* ******* *****
*** ********* ******** ******** were **** *** **** test:
- ***** ***-*********-*: *.***.****.**.*
- ********* **-**********-***: **.*.*
- ***** ***-********: *.*.**.****.**.*
- ********* **-*********-*: **.*.* ***** 151105
Comments (17)
Undisclosed #1
What are the exact part numbers for both the Dahua cameras?
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Marty Calhoun
We have been installing quite a few of the Value line Hikvision DS-2CD2542 4mp cameras inside in office environments and have noticed a remarkable improvement over the 3mp. We did not expect a vast improvement but it is definitely noticeable to the eye as the customer has both cameras on differing properties.
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Undisclosed Manufacturer #2
From what I heard, Hikvision's H.264+ smart CODEC requires a Hikvision recorder to take advantage of the bandwidth savings. Can anyone confirm if this is correct?
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Andrius Dapkevicius
Ahm... Well there is auto-focus in 27x2 as well as 26x2. Depends on what FW you have used.
As far as I know there should be EXIR version for 27x2 this should also solve some problems with IR during the night. http://prntscr.com/bmfx49
As for Uniview it works great BUT. According to market Uniview maybe a bit more expensive that Hik and Dahua. The gap between two giants and UNV is to big. So I would say to compare UNV means then to compare TIANDY, QIHAN, Brickom and so on. However it would be interesting :)
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