T54PRO-ZE versus ... another ... T54PRO-ZE ... ;-)

A

alekk

Getting comfortable
Aug 13, 2018
315
469
Republic of Boulder
Why would there be anything interesting about comparing a T54PRO-ZE versus ... another ... T54PRO-ZE?!?

Well ... it might provide some insights into unit variance ... albeit it's only two cameras. Plus when I had 'em mounted several feet apart (vertically), I thought I was some softness in the periphery ... so now we can do some serious pixel peeping! ;-)

FYI FWIW is that the first one came directly from China and arrived on 10/3/2025 with the second (logo in the bottom left) ordered on Amazon and arriving on 10/18/2025 - both ordered from @EMPIRETECANDY who (as typical) handled things well and I would recommend. Looking at the serial numbers (that are in Hex), the "newer" one is higher by "17D70" ... which is 97,649. But the difference in the MAC address is only "3F" which is 63 ... and the latest camera being LESS ... so who knows what that means?!? ;-)

Both running 0827 Firmware from Dahua with identical (fairly generic) settings.

One thing I noticed earlier that still exists here (as I suspect it would) it that the both camera's are set to zoom=550 and have very similar field of view (see GIF below comparing them) ... but the focus numbers are about 1645 versus 1745. I was kinda surprised to see that much difference ... albeit I don't think that's a big deal.

I'll have this up for another day or two ... so if anyone has any suggestions for "interesting" things to look at, let me know.

2025_10_20_TWIN_T54PRO-ZE.jpg



2025_10_20_1716_Two_Cams.gif
 
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Oh we have seen this before lol.

Two identical cameras bought at same time from the same lot looking at the same spot and need completely different settings to match the image. And one was using a few more watts power than the other.
 
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Unfortunately, I don't have a managed switch that would show me power draw ... but that's kinda funky one was a few watts more ... because they are only pulling about 5 Watts (no lights, etc.) to begin with.

Yea, I'm not expecting any "earth-shattering" insights ... but figured I'd toss it out there is anyone has any clever tests they want run.

Picture below is about an hour before sunset ... lots of dynamic range ... but ... the T54PRO's do some shadow boosting, so those aren't as dark as from the 5442.

Settings are 10msec shutter (1/100s) with 100 Iris and ZERO gain and ZERO 2D & 3D NR - gets dim if I go down to 1msec. The metering looks pretty identical and general image qualify looks similar ... albeit it's pretty windy, so I'll have to do my pixel peeping tomorrow for sharpness when it gets calm.


2025_10_20_1716_Two_Cams.gif
 
Last edited:
  • Wow
Reactions: Arjun
alekk said:
Unfortunately, I don't have a managed switch that would show me power draw ... but that's kinda funky one was a few watts more ... because they are only pulling about 5 Watts (no lights, etc.) to begin with.

Yea, I'm not expecting any "earth-shattering" insights ... but figured I'd toss it out there is anyone has any clever tests they want run.

Picture below is about an hour before sunset ... lots of dynamic range ... but ... the T54PRO's do some shadow boosting, so those aren't as dark as from the 5442.

Settings are 10msec shutter (1/100s) with 100 Iris and ZERO gain and ZERO 2D & 3D NR - gets dim if I go down to 1msec. The metering looks pretty identical and general image qualify looks similar ... albeit it's pretty windy, so I'll have to do my pixel peeping tomorrow for sharpness when it gets calm.


View attachment 230604
Click to expand...

Look same to me too

I’m running 0-3 ms day on the AS 3.6
 
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