5X-100X LWD M Plan S-APO EPI DIC Objective Lens for Metallurgical Microscope

  

5X-100X Long Working Distance Plan S-APO Semi Apochromatic EPI DIC Objective Lens for Metallurgical Infinite Microscope. Magnification: 5X, 10X, 20X, 50X, 100X, Numerical aperture NA: 0.15, 0.3, 0.4, 0.75, 0.9, Working distance WD(mm):15,8.7,11.9,3,1, Focal length f "(mm):36,18,9,3.6,1.8, Resolution R(um):2.1,0.9,0.6,0.4,0.3, Depth of field DF(um):16 3.1,1.7,0.8,0.3, Field of view FN:25,25,25,25,25, 25 Parfocal length :45,45,45,45,45 Thread size :4/5X1/36".