Nikon ECLIPSE E400 POL Instructions Manual page 19

3. Operation of Each Part
The diopter difference between both eyes is adjusted by
adjusting the diopter. In the case of a polarizing
microscope, since an eyepiece containing crosshairs is
used for the right eye, the procedure for adjusting the
diopter differs from that of an ordinary microscope
To begin with, turn the diopter adjustment ring on the
right eyepiece to bring the crosshairs in the eyepiece into
focus 1]. Next, focus on a specimen on the stage while
viewing with the right eye, and then turn the diopter
adjustment ring on the left eyepiece [2] and bring the
specimen into focus.
Before adjusting the interpupillary distance, perform
steps Ø to Шіл chapter "2 Microscopic Procedure" so
that the specimen is in focus with the 10x objective.
Adjust the interpupillary distance so that the view field
for each eye is at the same position on the specimen.
Doing so will make observation through the binocular
eyepiece with both eyes easier.
АУ;