20X Objective Brass Achromatic Objective Lens Clear Standard 20mm Thread Biological Microscope Objective Telescope Accessories

Description

How to Use: Can be used after connecting with the microscope. In order to facilitate observation, recommended to start observation at low magnification, more difficult to adjust at high magnification than at low magnification. According to the characteristics of the observed specimen, not all are suitable for observation under high magnification. Specification: Item Type: Achromatic Objective Model: 20/0.40 Material: Brass Use: Microscope Accessories Interface Size: Approx. 20.2mm / 0.80in (International Standard RMS Size) Magnification: 20X Numerical Aperture: Approx. 0.40mm / 0.02in Cover Glass Applicable Thickness: Approx. 0.17mm / 0.006in Microscope Applicable Mechanical Tube Length: Approx. 160mm / 6.30in Working Distance: Approx. 0.55mm / 0.02in Common Rail Distance: Approx. 195mm / 7.68in Parfocal Distance: Approx. 45mm / 1.77in Spring: Yes (Automatic ) Package List: 1 x Achromatic Microscope Objective 1 x Storage Box