UNSOLVED RAW-MIPI-SC53M maximum exposure length

[Izaak]

Hello, I am looking at the RAW-MIPI-SC53M 5MP camera module, and the documentation states the maximum exposure time is equal to 1/(max fps) which is less than 1 second. However, I would like to take long exposure images (up to 60 seconds exposure) - can this camera do that?

[veye_xumm]

@izaak In fact, in the Video streaming mode, it is impossible to achieve an exposure time of 1 second. I conducted a test in the 2 - lane raw8 format, as follows:

pi@raspberrypi:~/mvcamera/mv_tools_rpi $ ./mv_mipi_i2c_new.sh -w fps 0.01 
w fps 0.01
pi@raspberrypi:~/mvcamera/mv_tools_rpi $ ./mv_mipi_i2c_new.sh -r fps      
r fps is 3.48 fps
pi@raspberrypi:~/mvcamera/mv_tools_rpi $ ./mv_mipi_i2c_new.sh -w metime 1000000
w manual exp time is 1000000 us 
pi@raspberrypi:~/mvcamera/mv_tools_rpi $ ./mv_mipi_i2c_new.sh -r exptime       
r current exptime is 287129 us

It can be achieved in Pulse Trigger Mode. However, due to the excessive accumulated dark current, the signal noise will be very high. I don't think it has practical value.