AmScope PAPO20X 20X Infinity-corrected Plan Apochromatic Microscope Objective (20mm Mounting Thread)

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This is a 20X plan-apochromatic objective lens for certain infinity-corrected microscopes. Intended primarily for fluorescence applications, it is designed to work with infinity-co rrected microscopes using RMS mounting thread 45mm parfocal distance. Apochromatic correction provides improved resolving power, color purity, contrast, and plan field correction improves flatness for edge-to-edge sharpness. Compatibility Optical System Infinite Reference Focal Length 180mm Mounting Thread RMS 20.32mm Parfocal Distance 45mm Lens Specifications Magnification 20X Numerical Aperture 0.75 Corrections Plan-achromatic Cover-glass Thickness 17mm Nosecone Spring Immersion Medium None Working Distance 0.35mm Show more