Moth Wing Scales
This is a cleared tapelift from a moth wing. Brightfield
Kohler illumination optimizes the
resolution of objects in general and is the best starting point for observation
through the microscope. Modifications, such
as adjustments of the substage condenser iris, darkfield, or oblique illumination
may be required to optimize the image for
morphological features such as the ridges in the colorless scales between the darker
scales. Some morphological features
may be missed if the contrast is not high enough and the observer is not looking for
them.
Transmitted Oblique Illumination
Definition/Function:
Significance in the Environment:
Characteristic Features:
Associated Particles:
References:
http://en.wikipedia.org/wiki/Scale_%28zoology%29
Needham, George Herbert, THE PRACTICLE USE OF THE MICROSCOPE INCLUDING PHOTOMICROGRAPHY,
Charles C. Thomas Publisher, pp.
315-327, 1958