General discussion • Proper shutter speed for camera

Hello Users

I am new to raspberry pi and I am sorry for any wrong comments or mistakes in my question. I was earlier working with imx 219 but camera stopped working. Now i am working with hq camera(imx 477) 10 MP. I found out that the longest exposure time is 670 seconds and maximum shutter time is 200us.
I am writing this command

from time import sleep
import subprocess

dir = "/home/dpieloth/images/"
i = 0

while (True):
i += 1
fileName= "img_" + str(i) +".jpg"
opt = " --tuning-file /usr/share/libcamera/ipa/raspberrypi/imx219_noir.json"
cmd = "libcamera-jpeg -t 100 --framerate 0.20 --shutter 50000 --gain 1 --width 1296 --height 972 --output=" + dir + fileName
subprocess.call(cmd, shell=True)
sleep(5)

but the image is still not clear. What else can be done?

Statistics: Posted by learner1234 — Mon Mar 11, 2024 3:09 pm

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