This is what a Moire Tell Tale looks like. If you don't see the patterns, it is because you don't have Java enabled in your web browser. This photograph was taken in poor light from 35m away using a hand held digital camera and a tripod mounted telescope. It is out of focus and blurred by camera shake but can still be read to 0.1mm. Try it.
You can get a Java run time environment from Sun at:
http://www.java.com/en/download/index.jspThere are instructions for setting up your browser at:
http://java.com/en/download/help/5000020100.xmlThe co-ordinates show how sensitive it is. Move the scroll bars to apply a displacement.
