Recent content by MarkTG

I recently bought a few of these lights from this seller - unfortunately, the mounting threads aren't cut properly (which means that you can't get more than about 1/4 turn on the mount) but even worse, they don't focus down past about 25 degrees. I've just filed a dispute with AliExpress since...

The camera being discussed is the IPC-HFW5231E-Z12 Dahua Starlight Varifocal Bullet Z12 5.3-64mm (IPC-HFW5231E-Z12) Z12 indicates a 12x zoom. The above model is probably discontinued with a newer IPC-HFW5231E-Z12E version which is almost the same. I've got one of the original IPC-HFW5231E-Z12...

All of the fixed lens cameras are 2.8mm. The varifocals are 2.7mm to 12.7mm - all set to the widest setting for this test.

OK, I might give that a go on the 4433C-A and see how I go - it's not that great as it is so if I break it completely in the process, it's no big deal! ;-)

To be honest, I don't know - I haven't looked at that on any of these cameras - sorry!

I didn't originally set out to order the cameras specifically for this test, so I didn't order any extra cameras for testing purposes and I haven't got one of those models on hand or on order... I agree that it would be good to get one of the IPC-HDW4231EM-AS or IPC-HDW4231EM-ASE cameras to...

Yes, I'd say that it's just an artefact from the PWM flicker of the monitor. I just took a few photos of that monitor with my Canon DSLR set to 1/2000 shutter speed and the pattern from it was closer to the HDW5231R-Z than the other cameras... In case anyone is curious and wants to look up the...

True - the 4433 did a bit better than the 4431 and 4631 for low light, so if it's just my unit that's faulty then yes, that might be a reasonable choice. The 4433 is plastic - same as the 4431 - I don't think that there's any obvious difference compared to looking at the 4431. The 4631 is a...

It would be interesting to see if anyone has bought a 4433C-A and see if they have the same problem - to be honest, I'd be surprised if they were all this bad...

I think I'd go for the 4631C-A in that situation - definitely clearer during the day and possibly better than the 4431C-A V2 at night.

I bought it on AliExpress...

Yes, I'd say that the IPC-HFW5231R-Z is a completely faked version - could be a IPC-HFW4431R-Z with the firmware hacked to report a different model number and run at a lower resolution. Rather than buying a IPC-HFW5231E-Z, I'd recommend just spending a bit more to get the IPC-HFW5231E-Z12 -...

Hi Guys, I just did a quick and dirty test of several Dahua cameras and I thought that it might be helpful for others to be able to compare these different models. I'll start off with some stills from each camera and add some comments at the bottom. Default settings: To simulate...

Try turning down (or disabling entirely) 3D noise reduction - 3D noise reductions combines multiple images to reduce noise, but has the downside of causing motion blur even when the shutter speed is set high enough that motion blur shouldn't be occurring.

Freeware would be ideal, yes, but a small amount could be justified. This is for a non profit organisation which basically has no budget for a security system...