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Hi guys. What are snapshots for in a video surveillance system?

Hi guys! tell me please, when the camera is in color mode and I choose B/W mode, the camera still shows in color, also when the camera is in B/W mode and I choose color, it also does not switch.

I can’t turn off Anti-flicker, you can choose 50 or 60 hertz, if you choose 50, then you can’t make the shutter more than 1/100, and if 60, then more than 1/120. Maybe I have an old firmware? on the dahua website, I did not find a newer System Version3.000.0000000.2.R, Build Date: 2021-07-12...

I made the shutter 1/1000, now it is very hard to see and the black bars move from top to bottom

2831 has a longer shutter than 7842. but everything is visible on 2831, but not on 7842.

why at the same speed you can see well at 2831, but only a flash is visible at 7842? in the photo below there are two pictures at the same time and from the same angle, at 2842 you can see the number perfectly, and at 7842 there is a flash, only 2831 itself became darker, and 7842 did not...

I have a slow road, 5-15 miles per hour, and the camera is in metadata mode, the pictures on 7842 and 2831 were taken at the same time, with an increase in traffic 2831 the number is clearly visible, and in 7842 the whole car is illuminated.

Hi guys! I bought IPC-HFW7842H-Z cameras to replace my IPC-HFW2831T-ZAS-S2. 7842 work well during the day, but when switching to night mode, they are strongly illuminated by the IR spotlight, and it is impossible to recognize license plates. The 2831 has face priority features in the IR...

thanks guys, i want a bullet too. but the local supplier offered HDBW7842H-Z4 at a good discount, originally I was going to buy HFW7842H-Z (not z4), FOV of both cameras suits me, I would like to have a spare, but now I will choose a bullet, thanks again.

Wildcat, please tell me why you do not offer a dome on the street?

SMS not working at night?

Wildcat_1, I read your review and ordered varifocal cameras 5842 in exchange, 2831. but now I began to doubt whether I did the right thing. I think it might be worth buying 5442? how much better is 5442 at night, is there a big difference between these cameras?