A method of using laser scanning cytometry to provide a viewable image of
a specimen includes impinging a beam of light from a light source on the
specimen and positioning a detector such that the detector captures only
a portion of an unimpinged beam from the light source, and the detector
captures forward scattered light from the beam after the beam impinges
the specimen. Forward scattered light from the beam is captured with the
detector after the beam impinges the specimen to produce an image of the
specimen, and the position of the detector is adjusted to control the
contrast of the image.