Photography Asked by xme on June 20, 2021
I would like to use the Raspberry pi HQ camera for astrophotography. I have read in the answers and comments on this question that I should be able to use a maximum exposure time of 200 seconds.
This is also stated in the camera guide book (pdf) on page 115:
Shutter speed
--shutter or -ss
Sets the shutter speed to the specified value (in microseconds). The upper limit is around 6000000 µs (6 s) for CM v1; 10000000 µs (10 s) for CM v2; 200000000 µs (200s) for HQ Camera.
Can somebody explain how to use 200s of exposure time? In this answer they mentioned, using sudo rpi-update
is enough to unlock this functionality. But after running that command I can’t see a difference between photos using the 200s and 10s exposure time.
The solution:
I found it on this page.
time ( raspistill -t 10 -md 3 -bm -ex off -ag 1 --shutter 239000000 -ISO 800 -st -o image.jpg )
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