Anyone tried Amcrest IP8M-2779EW-AI? 4K Night Color Turret in Black or White

[TheWaterbug]

I saw this for $109 on amazon awhile back, but haven't seen any mention of it here, yet.

I asked on the amazon page ,"Does it support RTSP and ONVIF?" and a month later, Amcrest Support replied, "Yes."

So now this is interesting. "Featuring the latest Sony Starvis CMOS progressive scanning image sensor (1/2.8")" this is supposed to have better night vision than its predecessor.

I don't need the megapixels, so if I were to run this at 1920 x 1080 (e.g. 1/4 of the native 3840 x 2160), does it bin each 2 x 2 pixel set and give me 4x the sensitivity and/or 1/2 the noise? Or does it crop down and reduce my FOV?

I would be running this out of BI, so the AI and detection features, etc., also are not really of interest to me..

But I'd like to know if it's a worthy upgrade to the $50 - $55 IP5M-T1179EW cameras I've been buying for the last 2 years.

 

[Mike A.]

No, these sensors don't bin pixels. You just end up with lower resolution on the same sensor with whatever capabilities as far as sensitivity. With a 1/2.8 sensor @ 4K the 5MP that you have probably are as good or better at night.

 

[wittaj]

Downrezing a camera does not work - It is still using the 8 million pixels - the camera doesn't change the "pixel resolution screen" on the camera when you go from 4MP to 2MP. The sensor still needs 4 times the light going from 8MP to 2MP, so the native 2MP camera will result in a better image at night. The firmware will make some algorithm attempt at downrezing it, but it could be a complete crap image or a somewhat usable image, but if there is a concern that the 4MP isn't performing or wouldn't perform well at night, then it is better to go with the 2MP.

Your existing cameras would perform better at night. And it is probably similar to the Dahua 4K TIOC that is nothing but trouble.

 

[wittaj]

Lot's of threads here where people showed how bad the Dahua 3849 camera is in performing even during the day:

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[wittaj]

Not sure why the links didn't appear. Here is the thread I pulled from

HFW3849T1-AS blur unsharp focus in b/w-mode - lens/filter issue?

hello community i have a new dahua IPC HFW3849T1-AS and it work fine in color mode. only in night color mode getting unsharp. i now found out, that on black-white mode there jump a red-lens as filter before. than the focus is getting unsharp. usually all is fine and sharp to 10meters in color...

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