The sytem charts for the BX41and 51 microscope frames include a swing-out and also an ultralow-magnification condensers. What is the difference between the two?

When using our low magnification 1.25X objective, the ultralow condenser must be used for full field illumination. The swing out condenser is specified when a 2x objective and higher magnification objectives are required for a large magnification range with full field illumination. More.

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