Photon Transfer Curve

Your trusted source for independent sensor data

Last revised: 2023-11-18 00:00 GMT-5

Click on the camera model in list to display the Photon Transfer Curve. 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.

Notes:
These Photon Transfer Curves (PTCs) are made from observed data therefore values may not agree with other charts.
In particular read noise values may be lower due to black level clipping.
Colored dots are mostly sampled from the Photographic Dynamic Range (PDR) measurements and the black dot is the PDR location.
Generally the PTC (the black curve) will follow the colored dots and pass through the black PDR dot.
Noise values (the colored dots) at high signal levels may be underestimated due to the way data is gathered..
The gray lines mark read noise, photon noise, and Photo-Response Non-uniformity (PRNU) respectively.
Data in tabular form is in the resizable table below (sortable by clicking on column headers):

Further Reading:
Sensor Analysis Primer - Photon Transfer Curve
Sensor Analysis Primer

Contributions of data are always welcome, particularly if you see an (e) after your camera or your camera is not listed.
Contact me if you wish to help.