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A
range of microscopic techniques can be used to examine particles and larger
objects at magnifications ranging from x1 to x400. Samples can be examined
either in three-dimensions by binocular microscopy, or in thin section using
transmitted light microscopy. For specific purposes fluorescence
microscopy can also be used. The images can be captured digitally and exported
for image analysis.

Optical microscopy and digital capture
equipment Digital
binocular microscope image of
well-rounded beach sand grains
(x 10)

Debris
removed from footwear during a
forensic
Thin sections prepared from a series of
investigation (x
10)
gravel particles

Thin section of a particle of pumice (x
40)
Thin section of sandstone particle (x 40)

Binocular microscope image of a piece of bone
Fluorescence microscope image of the same
under plain light
conditions piece
of bone
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