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Chromatic Aberrations in microscopes

Started by Dasuhu, 08/01/2007 06:48AM
Posted 08/01/2007 06:48AM Opening Post
Note: I know very little about optics

Why does it appear (at least to me) that chromatic aberration is very rare in microscopes while very common in achromat refractors? This is probably a dumb question.

I've been using a professional grade Olympus dissecting microscope for the past year and have never noticed color fringing until today. At the microscopes' highest magnification (~115x), I noticed a definate purple halo around a very small (~750 micron) white-colored sea urchin. It took me by surprise because that's the first time I've seen CA in a microscope.

Just curious...