Hello there,
I did some focus testing with picamera module 3 and compared the maximum sharpness (FocusFoM) reached in a LensPosition walk with the sharpness of where AF ended up.
In straight forward setup, when camera is looking horizontally, AF hits the maximum quite nicely, BUT when the camera is pointed downwards, the correct LensPosition is not found by AF at all distances up to 1000mm.
I guess that in my testcase only the PDAF was working and the calculated LensPosition is incorrect because gravitation on the lense is not taken into account.
Does that make sense? Can anybody imagine a workaround to get proper results in the downwards setup ? Some special control settings?
Thanks and regards
I did some focus testing with picamera module 3 and compared the maximum sharpness (FocusFoM) reached in a LensPosition walk with the sharpness of where AF ended up.
In straight forward setup, when camera is looking horizontally, AF hits the maximum quite nicely, BUT when the camera is pointed downwards, the correct LensPosition is not found by AF at all distances up to 1000mm.
I guess that in my testcase only the PDAF was working and the calculated LensPosition is incorrect because gravitation on the lense is not taken into account.
Does that make sense? Can anybody imagine a workaround to get proper results in the downwards setup ? Some special control settings?
Thanks and regards
Statistics: Posted by rootk — Fri Jun 21, 2024 7:51 am