Leica S7 E, User Manual

Page: 41 / 45

S7 E User Manual Appendix 41
Calculating the Total Magnification/Field of View Diameter
Parameter
MO Magnification of the additional objective
ME Magnification of eyepiece
z Magnification changer position
NFOV Field number of the eyepiece. Field numbers are printed on
the eyepieces: 10×/ 23 , 16×/ 16 , 20×/ 12 , 10×/ 23 B, 16× 14 B,
25×/ 9.5 B, 40× 6 B.
Example
MO Additional objective 1.6×
ME 20×/12 eyepiece
z Zoom position 4.0
Magnification in the binocular tube
MTOT VIS = MO × ME × z
or
1.6 × 20 × 4 = 128
Calculation example: Field of view diameter in the specimen
∅
OF:
NFOV
=
12
= 1.9 mm
MO × z 1.6 ×4