Low ***** *********** *******
**** **** *********'* ********* shows, *** ************ *** produces ***** ****** *** better ********** ** *** full *** ** ****** than ***** ******** *********** model, ***** ******* **** IR ***** ** *** near *****, ********* ******* beyond.
*******, **** ******/******** ******* does *** ******** ********* to **** *******, ** the ***-* *********** *** produced ****** ******* ** subjects *** **** (****** without *****) ** *** light ****** *** ******. Additionally, ** ********* ****** with ******* ******** (*+ lux), *********'* ******** *********** PTZ ***** ******** ***** and ****** ******* ** or ****** **** *** DarkfighterX.
**** *** **** ** attractive *** ***** *** absolutely ******* ***** *********** when ******** ******** ** night *** *** ********* moderate *********** ******* ** do ** ** **** require **** ****** ** view. ****** *** ****** to ** ****** ****** by ******** ** **** which ***** ****** ******/**** details ** * ***** cost.
Other ******** - ***** *** ********* ******
*** ************ *** ******** from ***** ****** ***** in **** ***** ** PTZs ** *** **** tests, ******* ** ***** on ******** *** ** to ~** ******* ***** actively ********, ***** *** non-X *********** *** *** significantly **** ** **** problem.
*******, ************ ******** (*.***+) were ****** **** *** standard *********** *** ** low ***** *** **** scenes ** ~**-**%.
Competitor **********
** **** ******, ***** there *** ** **** technical ******** ********, ** focused **** ** *********. In ******** *******, ** will **** ** ***** manufacturer's ** / ***-***** PTZs, **** ****** ***** ***** ********* ** ***.
*******
*** **-*********-**** ************ *** sells *** ~$*,*** *** online, ***** **% ****** than *********'* ****** *********** (non-X) ***, *****-*********-****(~$*,*** ******).
Physical ********
*** ************ *** ** similar ** ************ ** other ********** ** ******, in **** *** ********** (though *** ******* ** silver ******* ** *** typical ***-***** ** ***** Hikvision/other ******).

**** *** *******, *** camera ***** ******* ** conventional ** **** ** its **** ******* *** not ******* ******* *** camera's ****** ****, ** shown ** *** ***** below:
DarkfighterX ******
************ **** *** ***** sensors, *** *** ***** and *** *** ********** and ********* ******** *** two. *********, **** ******* use * ****** ****, with ***** ***** ** each ** ****. ******* of **** ***********, *** DarkfighterX's ******* **** ** color (****** "***" ** the *** *********), **** IR **, ******* *** IP *******.

********* ***** *** ** images ** *** ****** produces **** ******* *******. Moving ********' ********** *** appear ******** "***" *** change ** **** ****, shown *****.

**** **** *** ****** also *** * "*****" monochrome ****, *** **** functions *********** *** **** as ******** ** ****, removing *** ***** *** light *********:

Bright ******/******** ******** **** ****** ***
**** ***** **** ****** of **** (***** *****), the ************ ****** ******** brighter ****** **** ****** contrast ** ***** **** the ******** *********** ****** produces ** ********** **** IR **. *** *** background ** *** *****, clouds, *** ******* ***** are *** ****** ******* in *** ************ *****, but *** ** *** non-X ***********.


**** ** ***** **** side ** ****:

IR "*** ***" **** ****** ***
*******, **** *** ************ camera ** ****** ***, subjects ****** **** ********* to ****** ** *** to **** ***** (***'+), as *** ******'* ** switched ** ****/******* *****, shown *****. **** ******** regardless ** ***** ** being ****** ** ** off.

**** ** ***** ** motion *****, **** *** subject ******* ********** ** range **** ****** **, then **** ********* ** see **** ****** ***.

Reduced **** ******* ******** ** ******** ** *******
******** *** ************ ******** a ******** ******* *****, with ****** *** ****** contrast, **** ******* **** as ****** ******** ******** moderately *******/******* **** ******* in, ******** ***** *********.
*** *******, ** ***' distance (~** ***), *** subject's ****** ******* *** test ***** *** **** clear ** *** ************ camera, *** ***** *** more ************/******* ** *** non-X *********** ***.

** ****** *****/****** **** levels, **** **** ** detail ******* **** **********. Shown ***** ** ~***', the ************ ****** ** dimmer, **** **** ***** subject ******* *** **** chart ********** **** *** standard *********** *****. *******, colors *** ***** ******* visible ** *** ************, shown ** *** ***** below.

*******, ** ****** ***** (~500'), **** *******' ******* suffer, **** **** **** of **** *** ******* and **** ***** ******* details.

Performance ***** ********** ** ******** ***** ******
** ********* ****** **** exterior ********, *** ************ performed ***** **** *** standard *********** *** ** color ****. ***** ****** from ~*-*** ** *** tests, ********* ** ********* to ******* *** ********.
*** *******, ** ~***' distance, **** ***** ** ~5-6lx, *** ************ *** Darkfighter ******* ******* ******* and ***** ******** ** "day" ****, ***** *** standard *********** ******** ******* details ** *** ******* and ***** **** ** on.

*** **** *** **** at ***** ***** ******, ~2-3lx, ***** *****. ** this *****, ******* ** the ************ *** *********** are ******* ** *****, with ******* ***** ****** with ** **.

Occasional ***** ******
****** *******, *** ************ camera *********** ******** ***** issues ******* ** ***** IR **** ******. ** the ******* *****, *** camera ***** ** ***** during *** ****** **** ~15 *******.

** ********, *** ***-* Darkfighter *** ******* ** the ******* ** **** 2-3 ******* ****** * similar ******** *******:

FoV **********
*** **** ***** ********** below ***** *** **** field ** **** ** each ******. ***** *** DarkfighterX ******** ******* ***** coverage **** *** *********** in ***** **** *** fine ******* *** ******* (see ***** ** ********** examples *****)

Full ***** ***********
** ******* ******, *** DarkfighterX *** *********** **** produce ******* ******* ** the ******* *** **** chart, **** ****** *********** in **********. *** ************'* image ** ******* ******/***** than *** ***********, *** practical ******* *** *******.

** **** *****, ~***', details *** *******, ** well.

Bandwidth **********
** **** **** (and *** ****** (~***) scenes, *** ************ *** consumed ~**-**% **** ********* than *** ***-* *********** model. **** ****** ****************'* *.***+ ***** *****.
**** **** ***** ******** were ******** ****** ****** tracking ** **** ******* represent **** ***** ***. Those ***** ****** ***** with **** ********* ** otherwise ****** *** ****** less ********** **** *** H.265+ ******** **** ******* to ***** *******, ****** the ************ ***'* ******** are ***** ********** ****** than ***-*, ** ~**%.

*.***+ ******* **** ********* in ***** *** *********. H.264+ ******* ****** ******* issues ** ******** ******* Center *** ****** ****.
Firmware ****
*** **** ******* ******** available ** *** **** of ******* *** ****, verified ** ********* *** technical *******.
- ********* **-*********-****: **.*.* ***** 170824
- ********* **-*********-****: **.*.* ***** 170907
Comments (6)
Jon Dillabaugh
04/26/18 03:54pm
Very well written, very detailed report! I am wondering a few things though;
Is it possible that these types of IR issues could be fixed in firmware? Or is it a by design feature that is just an Achilles heel? It does seem to be a legit issue to me. You would think you would still need that distant area illuminated.
I couldn't help but notice that in these examples that the DFX model was zoomed in tighter on the subject walking. Do you find, in general, that PTZ cameras have more trouble focusing on subjects when using more zoom? Is there something inherent in the lens that causes this? Or is this simply a design issue with this DFX model?
Could this also be related to color vs B&W mode? Would the standard DF unit have these issues in color mode? Would the DFX model focus better in B&W mode?
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Undisclosed Manufacturer #1
Really comprehensive test.
Interested in seeing future tests against other brand PTZs.
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Dennis Ruban
what was the quantization level when you measured the bandwidth? When I did my research, 6MP camera generated around 1.2 mbps on medium with H.265+ enabled, and you tested 2MP with pretty much the same bandwidth consumption
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