1/3" CMOS @ 4 MP versus 1/2.7 @ 5 MP - I have questions

[Ollie]

That's a CVI, composite video information, camera in the "Lite" series. Look at the minimum illumination spec of .001 LUX. A 5442, 4MP camera and a PoE camera, has a minimum LUX rating of .002. The spec saying 5MP for the sensor says nothing about how big it is.

just to understand; if the minimum illumination is low, it means that the camera can handle better at night time (avoiding other camera's parameters)? - if this correct, then 0.001 is better (in that sense) than 0.002?

 

[sebastiantombs]

Yes, it is in theory but even Dahua exaggerates these specs at times. The only true way to know would be a side by side comparison under the exact same lighting conditions. I'd also speculate that since the video source from that camera is composite something will be lost when it is digitized for viewing on a PC.

 

[DanDenver]

just peeping in real quick. The IPC-HFW5849T1-ASE-LED (Color 4K-X), a POE camera, has a lux rating of .0005 !
Many factors better in seeing in very dim light than .001 or .002

Sorry! I will butt out : )

 

[kobebeef]

HFW3449T1N-AS-PV 1/2.7 @ 5 MP
Because 5MP is a 20fps 4:3 picture
So I prefer 4MP 30fps 16:9

 

[sebastiantombs]

You must be producing a Hollyweird Epic and a half at 30F/ps. Even Hollyweird only uses 24F/ps. Shutter speed, exposure, is the real key.