Compared with a Mitutoyo M PLAN APO 20X, 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.

It should be noted that the NA value of this 20X objective is higher than that of Mitutoyo 20X(0.5>0.42), which results in improved image quality. However, at 4.0mm the working distance of this objective is much shorter than that of Mitutoyo.

Centre of the image

50% to centre on full frame

Full frame edge

An example of 100 images stacked. Method=B (R=8,S=4)