Nikon Z7 ISO Series from ISO 64 to ISO 25600 (Juniper over Beaver Pond)
See my Nikon mirrorless wishlist and Canon mirrorless wishlist and and Sony mirrorless wishlist.
This page shows ISO 64 to ISO 25600 on a real-world outdoor scene in which the background is out of focus, and thus yields a good look at just how noise develops with the Nikon Z7 including how it looks in smooth areas and how it obscures details.
Two series are presented, one without noise reduction and one with chroma and luminance noise reduction (long exposure noise reduction used for both).
Nikon Z7: ISO 64 to ISO 25600 (Juniper over Defunct Beaver Pond)
Includes images up to 4320 pixels wide, plus actual pixels crops, all with and without noise reduction from ISO 64 through ISO 25600.