The Nikon D810 has a native ISO range from ISO 64 to ISO 12800.
You can go a little lower and higher than that into what’s known as extended ISO, where goes beyond the native capabilities of the sensor hardware to ranges boosted by software. In the extended range, you can go down to the equivalent of ISO 32 (LO-1) and up to ISO 51,200 (HI+2).
All of the photos here are focusing on the high end of the ISO range. “High ISO” is, of course, subjective. For the purposes here, I’m treating it as ISO 6400 and above.
I shot all of these in RAW. I’ve processed them in Lightroom, but I haven’t applied any of Lightroom’s noise reduction tools (or applied other noise reduction apps, for that matter). And because these are processed from the RAW files, they don’t use any of the camera’s built-in noise reduction algorithms that are applied to JPG images straight out of the camera.
Sample Images Taken at High ISOs with the Nikon D810
I’ve included the ISO for each image in its caption.
Where to Find the Nikon D810
The D810 has been discontinued and have become harder to find new. But it’s relatively easy to find used copies in good condition. My first stop for used gear is KEH; you can find their D810s in stock here.
The D810 was replaced by the D850.