Microscope Objective Lens, 40x, 0.65 NA, 4.5 mm Focal Length

The M-40X microscope objective has a 40x magnification, 0.65 numerical aperture, 4.5 mm focal length, and 5.0 mm clear aperture. It uses a standard RMS thread, 0.800-36. The objective is corrected for a rear conjugate at 160 mm. The lenses are antireflection coated with MgF2 for the visible spectrum. This M-40x objective is suitable for use with either the Model 900 or 910A spatial filters. M- series microscope objective power is based on a 160 mm tube length.