Adjusting diopter settings and parfocality
Tips for your work Leica stereomicroscopes are parfocally matched. This means
that, once you have focused on a feature in the manner de- scribed, taking account of diopter settings, you can zoom the magnification up and down without refocusing. You only need to refocus if you want to look at higher or lower planes in the object. A prerequisite is the correct setting of the diopters and the parfocality.
• The dioptric range is from +5 to
The following adjustments must be carried out only once by each user. The procedures for adjusting the dioptric setting and the parfocality are somewhat different if an eyepiece contains a graticule. Refer to the user manuals for the MPS modular photomicrographic systems or for measuring.
A Preparations Install the lamp.
Set the interpupillary distance and, if necessary, the viewing height.
On the video/phototube: Move the
lever to position "VIS" and open the diaphragm.
Set the
Adjust the eyecups.
Set both eyepieces to zero.
Set the microscope carrier AX for
stereoscopic observation.
BFocus on the 1. Place a flat test object under the
test object objective.
2.Engage the lowest magnification position.
Use the coarse focusing drive to set the working distance (page 16).
3. Look into the eyepieces
Use the focusing drive, to bring the test object into focus.
20 | Leica M Stereomicroscopes – Operation |
