Leica M205 User Manual download pdf (Page 112)

Leica M series Manual 112

Calculating the Total Magniﬁcation and Field of View Diameter

Parameter

MO Magniﬁcation of objective

ME Magniﬁcation of eyepiece

z Magniﬁcation changer position

q Tube factor, e.g. 1.5× for coaxial incident light, 1.6× for 45°

ErgoTube™

r Factor 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

MTOT VIS = MO × ME × z × q × r

1 × 25 × 4 × 1.5 × 1.25 = 187.5×

Calculation example: ﬁeld of view diameter in the specimen

∅ OF:

FOV

O × z ×q ×r

1 2 ... 107 108 109 110 111 112 113 114

No comments

Leica M205 User Manual Page 112