It's so easy to perform these sample image calibrations that everyone should just do it themselves, but just for fun I attach images and calibration files for our 6 hole and 2 + 2 thin section sample holders from our Cameca.
If you do download these files to use with the PictureSnap feature in Probe for EPMA or in our new PictureSnapApp, you probably want to "touch up" the stage calibration but they should be really close for general navigation... however, please note that since we scribed some scratched lines on our sample holders to make it easier to calibrate the image, if you do update the stage calibration using these images, you'll probably have to choose some other "landmarks" to calibrate to, because these scribe marks won't be available on your sample mounts.
Edit by John: another thought: since the scratch marks we made on the sample holder are about 500 um higher in Z than the sample surfaces themselves, after getting the X/Y calibration done, we simply found the approximate Z stage position for the samples themselves and then just pasted that Z value in for all three point calibrations, and then clicked the Calibrate Image button again.
Of course if you're working on an actual sample that you scanned or took a picture of, you'd utilize the actual Z values for that sample and then small changes in sample height/tilt are automatically compensated for.