Calculating the Total Magnification and Field of View Diameter

Parameter

MO

Magnification of objective

 

 

ME

Magnification of eyepiece

 

 

z

Magnification changer position

qTube factor, e.g. 1.5× for coaxial incident light, 1.6× for 45° ErgoTube™

rFactor 1.25x if the planachromatic and planapochromatic objectives of the MZ125/MZ16 are used on the MS5, MZ6, MZ75 or MZ95

NFOV Field number of the eyepiece. Field numbers are printed on the eyepieces: 10× = 21, 16× = 14, 25× = 9.5, 40× = 6.

Example

MO

1× objective

 

 

ME

25×/9.5 eyepiece

 

 

z

Zoom position 4

 

 

q

Coaxial reflected light 1.5×, tube factor

 

 

r

Factor 1.25×

 

 

Calculation example: magnification in binocular tube

Calculation example: field of view diameter in the specimen

 

 

 

MTOT VIS = MO × ME × z × q × r

 

NFOV

 

or

 

 

 

OF:

 

1 × 25 × 4 × 1.5 × 1.25 = 187.5×

 

MO × z ×q ×r

 

 

 

 

 

 

 

 

Leica M-series

User Manual

63

 

 

 

Page 63
Image 63
Leica M80, M60 user manual Parameter, Example, Calculation example magnification in binocular tube