Hi, i have pi4 + a lot of 64mp cam
I want to use these two observe insects.
When i use the offical document suggestion
viewfinder-width 2312 --viewfinder-height 1736
It doesnt foucs ( the auto foucs is on)
After i change to width 2700 viewfinder height 1736
Its clear and foucsed (still not the best foucsed)
I cant go higher it will tell me the buffer full, memeory error.
What i shoud do? I used munual foucse py file, but everytime when i take shot, the setting go back to original again.
i installed these step by step by following the offical document. And it happends like what i said.
Is it ok we meet on online to remote figure out this issue?
I haven spent weeks to figure out these. And i have bought 20 ardu cams.
Non of them foucs but everything i followed the offical documentation.
Please help me.
Ok, thanks. I love you for helping me.
I set that in the config.txt under pi4 already.
It can shot 64mb image. But i neednto sepecify the height and width otherwise it thots 16mp image. I will try to use autofoucs-mode manual.
I just want better foucs actually since last year a student did very good shot, but he left. And thisnyear my image is always a little bit blurred.
Besides, could you explain what i should do for headless version of image. You mean close the pre-view?
Besides, my code is libcamera-still -viewfinder-width 2312 --viewfinder-height 1736 --width 9152 --height -6944 -o “my file name” --autofoucs-on
If i do not specify viewfinder it shows image buffer memoery allocation error. My pi is 4 and the system is newly installed yesterday.
@Edward do you know the reason why i change the viewfinder value the image foucs also changes? I really dont get it.
Therotically, viewfinder is just a preview, it doesnt control any parameters of the camera.
@Edward i do appreciate it your help.
Here i have two questions i still donest understand
I tend to use cam-512 for both 16mp and 64mp cameras on pi3 and pi4. (Usually i use pi3+16mp and pi4+64mp), they both sometimes show allocation error (depends on the size of viewfinder).
The image size are fine 16mp get 16mp img and 64mp get 64mp images.
Since i set them take images every 1 hour without video output, is there any difference between desktop GUI and lite version??? I mean if i do not plug in HDMI cabel, there should be no difference between desktop and lite version i guess.
viewfinder-width 2312 --viewfinder-height 1736.
This code Makes both 16mp and 64mp cant focus well, after i lower them, they can focus on my target thing (its a insect trap i want to observe insect). Do you know why? Ita just previous, i really dont get it.