Chapter 4 Microscopy Techniques
99
4.5.3 Combination of the Optical Elements Required for DF Microscopy
DF microscopy uses the following components. Condenser turrets or condenser sliders are not used.
• Dark-field condenser adapter (TI-DF)
• Darkfield condenser (darkfield condenser Oil or darkfield condenser Dry)
• Objectives with NA smaller than the minimum NA of the condenser, or objectives with a diaphragm (10x or
more for the dry-type condenser lens, 20x or more for the oil-type condenser lens)