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

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-corrected 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.