IR filters are in both versions of camera, but the 23L have it not on lens maybe after that!
You can see it if you look at both lenses after you have expanded!
Because of that you have white shadows and lila paint stains filming against sun. Too much unfiltered light on the sensor!
You can test both lenses filming a switching IR remote control and you will see an great difference, 23L is not filtering the whole IR beams.
The versions before also have the filters on lens, in 23L they changed!
...her is my working 2k 35mbps (modified bitrate firmware) script for IR lens from gearbest, test if it corresponds to your request. I have best results of watching quality with quicktime player, VLC for me has bad quality!
in the script are also lines for higher bitrates working with my micro sd, test if working with your micro sd without file splitting.
I do not know if the lowbatt line takes effect, also the JPEG quality line i mean takes no effect, perhaps someone a solution for setting quality of fotos.
mfg
gente