Noise is easy to find in a photograph taken at ISO6400 or above –but will you really notice it at real-life display and print sizes?
It’s easy to zoom in on a photo on the computer at 100% magnification and see every dot and speckle of image noise. But don’t forget that 100% is a very high level of magnification, especially if you’re using a Nikon like a D850, Z 7II, Z 8 or Z 9. These cameras have 45.7-megapixel sensors, so 100% view represents a very high magnification indeed.