For low light shooting (Z7 at ISO 25000) at what level of noise reduction should I choose in camera if I also intend to use DeepPRIME XD noise reduction on the Raw image?
The normal in-camera NR affects only the out-of-camera JPGs and has no effect on the RAW files. The High ISO and Long exposure NR versions might affect the RAW files and I would leave them both off. Deep Prime XD is very capable of handling the noise at 25000 ISO all by itself.
Right! I had forgotten about that, Thank you.