These are called active deterrence cameras. Most of that logic is within the camera itself, although some of that functionality can be set up within
Blue Iris.
Avoid the 8MP active deterrence.
Chase sensor size, not MP.
Keep in mind that the active deterrence cameras are good as overview cameras, but will not IDENTIFY someone unless they are 10ish feet or so away, but that goes for any 2.8mm fixed lens camera. Do not think this camera is the be all, see all, do all.
The distance to be covered from the camera to the object location is the most important factor and more important than MP.
Most here record to the SD card on motion with Blue Iris. Many here experience issues trying to run 24/7 recording on the cameras. The CPUs just are not big and will end up stumbling. Some do it no problem.
You need to identify the areas you want to cover and pick a camera designed to cover that distance. In some instances, it may be a 2MP or 4MP that is the right camera. DO NOT CHASE MP!!!
It is why we recommend to purchase one good varifocal and test it at all the proposed locations day and night to figure out the correct focal lengths and cams.
A few other tips....It is simple LOL do not chase MP - do not buy a 4MP camera that is anything smaller than a 1/1.8" sensor. Do not buy a 2MP camera that is anything smaller than a 1/2.8" sensor. Do not buy a 4K (8MP) camera on anything smaller than a 1/1.2" sensor.
Unfortunately, most 4k (8MP) cams are on the same sensor as a 2MP and thus the 2MP will kick its butt all night long as the 4k will need 4 times the light than the 2MP... 4k will do very poor at night unless you have stadium quality lighting (well a lot of lighting LOL).
That 3849 active deterrence camera is an 8MP on a 1/2.8" sensor, so it is on a horrible MP/sensor ratio. You cannot have enough light at night for it to perform well.
Even worse, this 8MP is on the same sensor and CPU as a 2MP non TIOC camera and there are many threads here showing how under-performing that 3849 is. They had to limit bitrate and other parameters on the 3849 to try to make it functional, and it just doesn't cut it.
In my opinion the 3849 should not be sold with that current MP/sensor and CPU combination, but alas everybody wants 4k and chases MP over sensor and this camera is the epitome of that thinking.
Further, the red/blue flashing lights are more gimmicky and are certainly not a deterrent. With any ambient light you won't see the red/blue flashing unless you are looking right at the camera.
If you want active deterrence, your best bet is to go with the 2MP IPC-T5241H-AS-PV that will blink the white light. This is on the ideal MP/sensor ratio and will perform comparably to any similar 2MP fixed lens camera by Dahua. I have two of them. I have some of the other active deterrence cams as well, and would opt for the 2MP in every instance except for indoor, one could go with the IPC-HDW3449HP-AS-PV that has the red/blue lights that will bounce off the walls and be much more impressive than outside.
Or go with a camera that has a built-in speaker. The lights simply do not scare intruders. Look at all the posts where a floodlight turns on and the perp doesn't even flinch...
Lot's of threads here where people showed how bad the 8MP camera is in performing:
I put this guy up and for some reason, and I can put my finger on it, this picture just looks strange. The grass kind of looks like digital or something. The camera is on the default settings but I feel like I have tweaked most of them. Any suggestions? IPC-HDW3849H-AS-PV is the camera.
ipcamtalk.com
I have a IPC-HDW3849H-AS-PV (8MP, Full-color night, 1/2.8” CMOS (3840 × 2160) @20 fps). I also have several IPC-HDW5831R-ZE, IPC-HDW2831T-ZS-S2 , and IPC-HDW4431C-A. The IPC-HDW3849H-AS-PV disconnects and reboots during the day, I have no issues during the night. It's my only cam that has this...
ipcamtalk.com
Hello everybody! I replaced my favourite camera HDW5442TMP-ASE with new HFW3849T1P and I came accorss that HDW5442TMP-ASE has much better picture than newer one. I replaced it because HFW3849T1P 8MP instead of HDW5442TMP-ASE 5Mp and HFW3849T1P is TIOC (three in one camera). I didn't expect so...
ipcamtalk.com
Dahua 8mp (TIOC): Full Colour, Active Deterrence & AI now for sale in UK. I wish they had the Image Sensor: 1/1.8" and a F1:0 lens as I would be all over this. SPECIFICATION Model Number: IPC-HFW3849T1P-AS-PV-280 CAMERA Image Sensor: 1/2.8" Progressive CMOS Effective Pixels : 3840 x 2160...
ipcamtalk.com
Hi All, I have recently installed Dahua IPC-HDW3849H-AS-PV, 2.8mm (8MP, full color, active deterrence) cameras. The overall video quality is good but I cannot read number plate for cars passing down the road (approx 11 meters away) or identify people properly. Is it the expected behavior? What...
ipcamtalk.com
