Click on the camera model in list to toggle visibility. Zooming is enabled. Use the resize box to resize the chart and list.
To share a chart consider getting a link with the link button rather than or in addition to simply using a screenshot.
Data marked with a (p) are preliminary using actual measurements from raw files but not those taken under the usual controlled conditions.
Historically preliminary data has been quite accurate.
Values are relative to base ISO. Base ISO for the D300, D300s, D90, and D5000 is ISO 160.
Changes at the "Hi" ISO boundary are common. Sometimes up and sometimes down. Sharp changes are a mystery at this time.
Dips at intermediate ISO values result from two-stage amplification.
Sensor Analysis Primer - Photographic Dynamic Range Shadow Improvement
Sensor Analysis Primer
Contributions of data are always welcome, particularly if you see an (p) after your camera or your camera is not listed.
Contact me if you wish to help.