We have a Leitz microscope with lots of nice stuff like a dark field mode and a digital camera for saving images. I recently calibrated this camera so that we know how big our samples actually are.

Handy Stuff

	The calibration of the digital camera on the microscope
	The images used to generate the calibration.
	Calibration reference sheet as a PDF File
	A handy Matlab function that displays these images with scale bars.