Opticallimits

Can you observe a pattern where it doesn't work?

I noticed mainly on some faces, the algorythm seemws to get lost here's an example 100% crop, nonetheless noise controle for ISO 16.000 is excellent [attachment=194]
will update image without noise reduction let at night

[attachment=198]DXO standard noise reduction



[attachment=197]DXO Deep Prime 



[attachment=196]DPP



[attachment=195] ACR