Leica M165 C B Manuel D’Utilisation

Page de 57
Leica M series 
User Manual 
37
Parfocality: More Comfort and Convenience for Your Work
All Leica stereomicroscopes are parfocally 
matched, meaning that you can view a focused 
specimen from the lowest to the highest 
magnification without having to refocus. The 
focus needs to be readjusted only if you want 
to view a specimen detail that is located higher 
or lower.
Requirements for parfocal work
 
If you are using an eyepiece with dioptric 
correction, the procedure differs from this 
description. For more information, refer to 
page 43
Parfocality
1.  Enlarge the view to the maximum level.
2.  Focus on the specimen.
You are done! Even if you select a smaller work-
ing distance, the specimen remains pin-sharp.
The parfocality is maintained until you focus on 
another level of the specimen.