Microscope Calibration: a short tutorial [New version]

Credits: Special thanks to Dr. Paula Wilson of York University for supervising the making of this tutorial and making recommendations on improving the instructions. I own full copy rights and full worldwide distribution rights to this video. This video may be distributed for educational purposes on a non-profit and 100% ad-free basis. I ask that you provide a link to the original video here on YouTube. The links and (email) addresses displayed at the end of the video are no longer in use.