Out of interest, do you plan to run these in colour overnight?
So here's the NIGHT comparison of Firmware 0827 & 1022 on the T54PRO-ZE at zoom level 550 - that scale goes from 0-2426.
First, this is
NOT A "FAIR" SITUATION for the camera ... since the settings are 80msec shutter, 100 iris, 65 gain, 50 3D NR, and 50 2DNR. So clearly the light level is waayyy to low to use color (without adding some lights) to capture any motion. BTW, be very careful with the gain - this scene falls apart real fast when you go about 65 gain.
I don't see much difference - again, the the histogram shows the blue channel is reduced slightly (I compare using a 1920x1080 cutout from the middle, so the overhanging roof on the top camera doesn't show) but I don't have a clear preference ... LOL they are both BAD!
The 1022 seems to be doing a bit more "smearing" (see the road and driveway) ... but this is such a mushy image, I'd be careful judging it as such.
BTW, I was kinda surprised (in THIS low light situation looking at STATIC images) that changing the level of NR (both 2D and 3D) didn't make that much difference, although it did reduce the "dancing pixels" in the video. BTW, if you want to see what the NR
TOGGLE does by itself, try a low light scene like this, set the LEVELS of NR to ZERO for both ... and then toggle the NR which causes a BIG difference.
To echo how dark this is, it looks like my neighbor across the street turned on their patio lights ... which come out really bright!
In summary, I don't see a big difference (in this situation!) between the 0827 & 1022 firmware - but I would not expect the Dahua engineers to test such an extreme case, but it perhaps gives some idea of the very outer limits of the current sensor/lens/processing.
BTW, in comparison to the 5442-S3 (took that down to put up the 2nd T54), that would have to run at least TWICE as much shutter exposure (160msec!) and it's a pretty dull image without the colors here. So I consider that good progress ... albeit this is static image testing. And I look forward to testing the next generation sensor (hopefully 1/1.2" ... or even 4/3") paired with an F/1.0 lens! ;-)
And before someone says it, sure, I could put up a junky Reolink with a 1/3" sensor & crappy lens and if it allowed me to do a long enough exposure, I would get a similar STATIC picture. But it would need to be much, much, much slower than what the T54 is doing here.