Dahua Starlight Varifocal Turret (IPC-HDW5231R-Z)

awsum140 said:
Just a guess, but look for something reflecting the IR into the 5231R from the Hikivision or, alternately, re-orient one of them slightly.
Click to expand...

Yeah i turned the Dahua 90 Degrees and then did the same in the software.


End result below attached


Ignore the blacked out parts, was just giving a mate some grief as he loves installing samsung cameras. 3 x the price of a Dahua.
 

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I like to test install my cameras at night, this way, I can deal with the reflections and find the right spot for each camera.
 
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Seems like this should be obvious, but for the life of me I can't figure out how to adjust the focal length... Can anyone help me out with this? Is it a manual adjustment or via the config - I've looked at both places. Also, one other question - is there anywhere to see what your current focal length is set to?

Thanks!
 
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teamRAVEGREEN said:
Seems like this should be obvious, but for the life of me I can't figure out how to adjust the focal length... Can anyone help me out with this? Is it a manual adjustment or via the config - I've looked at both places. Also, one other question - is there anywhere to see what your current focal length is set to?
Click to expand...
If you connect to the camera from a computer (using a web browser that supports the plugin), you should be able to go to Camera > Conditions > Zoom and Focus tab and use the slider to change the zoom (focal length). If you hover your mouse over the Zoom slider setting, it will give you a numeric value that ranges between 0 (2.7mm) and 1400 (12mm). I think from knowing that, most folks make an approximation of the current focal length.

Screen Shot 2018-01-28 at 7.48.55 PM.png
 
Ah shit... I saw that and wondered, but it is grey'd out in my browser. I tried the NACL plugin for chrome which surprisingly didn't work. I also tried IE. Need to find an alternative I guess... Thanks!
 
Thanks @looney2ns - working like a charm. Ok, last question from me tonight, has anyone taken the time to figure out how 0-1400 might be correlated to mm, maybe documented it someplace? I'm trying to compare default 2.7mm (close enough to 2.8) vs 3.6.
 
Ok I lied -
forum searching got me this: f(F) = (F - Fmin) / (Fmax - Fmin).

Looking at your equasion @tangent I was good until swRange. I'm not following what that is? Software range? 0-1400?

What about currentSetting? 2.7?
 
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looney2ns said:
In chrome, install the IE Tab extension. It works
Click to expand...

Has NACL been deprecated? And is IE Tab extension here to stay or also to be eliminated?


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teamRAVEGREEN said:
Ok I lied -
forum searching got me this: f(F) = (F - Fmin) / (Fmax - Fmin).

Looking at your equasion @tangent I was good until swRange. I'm not following what that is? Software range? 0-1400?

What about currentSetting? 2.7?
Click to expand...
In this case it would be:
equivMM = (12mm-2.7mm)/1400*currentSetting+2.7mm
Set it to zero and you get 2.7mm set it to 1400 and you get 12mm.
algebra really isn't that hard.

complex_conjugate.png
 
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Try pale moon and make sure to reinstall the latest plugin again each time any issue in web browsing viewing is encountered

I’ve noticed the plugins vary in size time to time
There has to be a few lines of script modified each time the webplugin is sent out through dahua server

giomania said:
Has NACL been deprecated? And is IE Tab extension here to stay or also to be eliminated?


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Click to expand...
 
My only complaint about Pale Moon is the confusion I have about enabling H264 on it on Win10.
 
@EMPIRETECANDY , is this model (DH-IPC-HDW5231R-Z) on the short list of obsolescence from Dahua? I was just viewing the most recent international on line catalogue and do not see it there any longer. The closes model seems to be the DH-IPC-HDW2231R-ZS, which seems to have a slightly wider lens range, one less feed and no audio interface, and is limited to 30 fps.
 
tangent said:
n this case it would be:
equivMM = (12mm-2.7mm)/1400*currentSetting+2.7mm
Set it to zero and you get 2.7mm set it to 1400 and you get 12mm.
algebra really isn't that hard.
Click to expand...

In case anyone is interested:

(if I've done my maths correct)

x = EquivMM - 2.7 / .00664 (plug in the EquivMM you want, solve for x)

2.7mm = 0
3.6mm = 135
6mm = 500
8mm = 800
10mm = 1100
12mm = 1400

Thanks again for the formula!
 
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awsum140 said:
My only complaint about Pale Moon is the confusion I have about enabling H264 on it on Win10.
Click to expand...

What is the process to do this? And are you using the x64 or the x86 Version of the browser?


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bug99 said:
@EMPIRETECANDY , is this model (DH-IPC-HDW5231R-Z) on the short list of obsolescence from Dahua? I was just viewing the most recent international on line catalogue and do not see it there any longer. The closes model seems to be the DH-IPC-HDW2231R-ZS, which seems to have a slightly wider lens range, one less feed and no audio interface, and is limited to 30 fps.
Click to expand...
Noooooooooooooo....... lol
 
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