Sony released IMX482 and IMX485 in 2020, both type 1/1.2", IMX482 is basically the 2x2 hardware binned version of IMX485, making its pixel size to 5.8um*5.8um, the largest pixel size in Sony's all CCTV sensors. SNR1s goes from IMX485's 0.19 to 0.07, also the lowest one so far in the world
5 years after released, there's still very rare IP camera with IMX482 inside. I've got some cameras with IMX485 and the newer Starvis2 IMX585 sensors, but never got one with IMX482, which should be the king of all low light CCTV cameras
A few days ago I came across this camera, it was retired from some kind of special service which I don't know, definitely not regular surveillance usage. It's very weird that they used HiSilicon Hi3516EV300 with this super expensive sensor, that SoC is typically used in sub $20 low-end consumer cameras. Anyway, it's still capable of processing the 2M pixels IMX482 can give
Camera tested in the same room where I tested IMX585 and IMX385 before, it's a storage room with no window, door closed, no any light except the indicating LEDs of my UPS, network switch and router. It looks like the following black picture with human eyes
To fit the big 1/1.2" sensor size, I also used a F0.95 Ø72mm big lens, focal length 15-45mm, which is set to minimal to give a same view filed as the previously tested IMX585
Following are snapshots from the IMX482 rtsp stream.
Shutter speed from 1/25s to 1/2000s, sensor gain set to auto, so that camera will try to give a best visible image with lowest possible gain automatically. ISP gain turned off
The testing result is pretty good, definitely much better than IMX585, which has a 0.17 SNR1s. Judging by my eyes, 1/25s shutter speed of IMX482 equals 1/10s of IMX585. Testing chart is still visible at 1/1000s shutter.
Due to sensor driver issue, I failed to set shutter slower than 1/25s. If someone can share datasheet of IMX482, I can set shutter speed by setting sensor register directly
5 years after released, there's still very rare IP camera with IMX482 inside. I've got some cameras with IMX485 and the newer Starvis2 IMX585 sensors, but never got one with IMX482, which should be the king of all low light CCTV cameras
A few days ago I came across this camera, it was retired from some kind of special service which I don't know, definitely not regular surveillance usage. It's very weird that they used HiSilicon Hi3516EV300 with this super expensive sensor, that SoC is typically used in sub $20 low-end consumer cameras. Anyway, it's still capable of processing the 2M pixels IMX482 can give
Camera tested in the same room where I tested IMX585 and IMX385 before, it's a storage room with no window, door closed, no any light except the indicating LEDs of my UPS, network switch and router. It looks like the following black picture with human eyes
To fit the big 1/1.2" sensor size, I also used a F0.95 Ø72mm big lens, focal length 15-45mm, which is set to minimal to give a same view filed as the previously tested IMX585
Following are snapshots from the IMX482 rtsp stream.
Shutter speed from 1/25s to 1/2000s, sensor gain set to auto, so that camera will try to give a best visible image with lowest possible gain automatically. ISP gain turned off
The testing result is pretty good, definitely much better than IMX585, which has a 0.17 SNR1s. Judging by my eyes, 1/25s shutter speed of IMX482 equals 1/10s of IMX585. Testing chart is still visible at 1/1000s shutter.
Due to sensor driver issue, I failed to set shutter slower than 1/25s. If someone can share datasheet of IMX482, I can set shutter speed by setting sensor register directly
