Setup and Bright Field Alignment

9- Adjust diopter
The dioptre adjustment ring (C) corrects for the focal differences between your right and left eyes. Close your left eye and look through the right eye piece (A) and use the coarse focus (M) and fine focus (N) knobs to bring the specimen into perfect focus. Close your right eye and look through the left eye piece (A) and turn the diopter adjustment ring (C) until the specimen is in perfect focus (Don't use the coarse and fine focus!)