Re: Optical artefact removal: reply

Posted by Henry Barwood on Jul 19, 2006; 5:05pm
URL: http://imagej.273.s1.nabble.com/Optical-artefact-removal-reply-tp3702090p3702094.html

I know that this has been gone over quite a bit, but looking at the images,
I wonder if it could be diffraction off of the microscope tube. One way to
test would be to remove the cameras and eyepiece and simply look down the
illuminated tube. If you see concentric rings and/or bright spots it is
sometimes caused by too-small or improperly aligned light stops. I have also
had components diffract off the edges of an insert or component module. Just
a thought.

Henry Barwood
Associate Professor of Science, Earth Sciences
Department of Math and Physics
MSCX 312G
Troy University
Troy, Alabama
[hidden email]