D5 file size as a metric for noise.

[bobfriedman]

Now this is interesting http://diglloyd.com/prem/s/DAP/NikonD5/NikonD5-ISO-fileSize.html

[Andy]

Now this is interesting http://diglloyd.com/prem/s/DAP/NikonD5/NikonD5-ISO-fileSize.html

Thanks for sharing the link.

Not that it counts in this context, but I covered the filesize and noise interaction back in 2010 ...
... and started looking into this during the D7000 first impressions and used it ever since for a first assumption where noise really kicks in.
D7000 - first impressions (please scroll approx to the middle of the page to see the table).
A second "soft indicator" is the NR setting a manufacturer chooses for a particular camera. To see when the HW engineers start depending on the SW engineers (the NR table is just before the filesize table)

rgds, Andy

Below is a table with the D5 values in comparison with the D4, D800E, D7000 and D700
green = Base ISO
yellow is extended ISO Settings
filesizes are normalized to standard ISO filesize

[Erik Lund]

Thanks! Never really noticed this

More than 100% is quite a difference!

[Andy]

Thanks! Never really noticed this
More than 100% is quite a difference!

Yes, it is.
With each generation the marketing department became "bolder" in what they considered "acceptable noise levels" for customers
rgds, Andy