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<p>in amplitude (light intensity).</p>

<p><big> Techniques </big></p>
<p>To improve specimen <a href="page.php?w=contrast_%28vision%29">contrast</a> or highlight structures in a sample, special techniques must be used. A huge selection of microscopy techniques are available to increase contrast or label a sample.</p>

<p><big> Bright field </big></p>
<p>Bright field microscopy is the simplest of all the light microscopy techniques. Sample illumination is via transmitted white light, i.e. illuminated from below and observed from above. Limitations include low contrast</p><p>
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