The CFI E Plan Achromat Objectives provide a long working distance, high numerical aperture, and flat image over the entire field of view, and there is almost no curvature of field when the field number is 20 mm. With these optical components, educational microscopes have acquired the same optical technology as previously used in advanced research-grade microscopes.
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CFI Achromat Objectives, CFI Plan Fluor Phase Contrast Objectives, CFI60 Water Dipping Objectives, Lambda-S Objectives