Here's a link to the 1.4 MB .zip file for the Canon 600d (T3i) camera with embedded noise examples:
http://www.canprint.org/Misc/140227_600 ... antern.zip
The .tiff's were generated from ACR 8.3 as 16-bit ProPhoto color-space, uncompressed. Sliders for Basic, Clarity, Saturation, Vibrance, Sharpening, Noise Reduction, and Lens Correction were zero'ed / disabled. Pv2012.
ISO's included full stops from the "Regular" 100 to 6400. There are also intermediate ISO's that are enabled by the MagicLantern firmware (ISO's 160, 320, 640, and 1250).