Description Specifications: 20X M PLAN APO OBJECTIVE LENS Working distance : 4.0mm RMS thread Compared with Mitutoyo M PLAN APO 20X(brand new) ,it provide excellent image quality on Full frame camera.From the image alone, the actual image quality is superior to Mitutoyo’s 20X. The actual test results are as follows. The test involved using a gray dot pattern printed with a laser on white paper, using a diffuser and stacking shots, which allows for a very clear view of chromatic aberration and contrast.100%display It should be noted that the NA value of this 20X objective is higher than that of Mitutoyo 20X(0.5>0.42), which is the reason for the better image quality. However, the working distance of this objective is much shorter than that of Mitutoyo. Stacked from 100 images. Method=B (R=8,S=4),Resize only.
