Calculating The Total Magnification/Field Of View Diameter - Leica S Series User Manual

Calculating the Total Magnification/Field of View Diameter

Parameter
M O Magnification of the additional objective
M E Magnification of eyepiece
z Magnification changer position
N FOV Field number of the eyepiece. Field numbers are printed on
the eyepieces: 10×/23, 16×/16, 20×/12, 10×/23B, 16×14B,
25×/9.5B, 40×6B.
Magnification in the binocular tube
M TOT VIS = M O × M E × z
or
1.6 × 20 × 4 = 128
S Series User Manual
Example
M O Additional objective 1.6×
M E 20×/12 eyepiece
z Zoom position 4.0
Calculation example: Field of view diameter in the specimen
N FOV
∅ OF:
M O × z
Appendix
12
= = 1.9 mm
1.6 ×4
81