1x Oil Darkfield 100X objective with iris (NA 0.31 - 1.25)
1x Darkfield condenser (Dry NA 0.7 - 0.9)
1x Darkfield condenser (Oil NA 1.25 - 1.36)
This darkfield kit allows darkfield imaging with any objectives with any magnification.
The Oil Darkfield 100X objective whit iris (NA 0.31 - 1.25) enable high magnification imaging with higher contrast. The iris can be adjusted to optimize contrast.
Please see this link for darkfield image examples: