Leica MZ16 A, MS5, MZ6, MZ125, MZ16 FA, MZ95, MZ75 user manual Calculation

Calculation

Total magnification	MO	Magnification of objective
and field of view	ME	Magnification of eyepiece
diameter	z	Magnification changer position
	q	Tube factor, e.g. 1.5⋅ for coaxial incident light,
		45° ErgoTubeTM 1.6⋅
	r	Factor 1.25⋅ if the planachromatic and planapochro-
		matic objectives of the MZ125/MZ16 are used on the
		MS5, MZ6, MZ75 or MZ95
	NFOV	Field number of eyepiece. The field numbers are printed
		on the eyepieces:
		10⋅ = 21, 16⋅ = 14, 25⋅ = 9.5, 40⋅ = 6.
Example	MO	Eyepiece 1⋅
	ME	25⋅/9.5 eyepiece
	z	Zoom position 4
	q	Tube factor 1.5⋅ (because of coaxial illuminator).
	r	Factor 1.25⋅

Magnification down binocular tube:

MTOT VIS = MO ⋅ ME ⋅ z ⋅ q ⋅ r		1 ⋅ 25 ⋅ 4 ⋅ 1.5 ⋅ 1.25 = 187.5 ⋅
	Diameter of field of view:
∅ OF :	NFOV	9.5	= 1.3 mm
	MO ⋅ z ⋅ q ⋅ r
		1 ⋅ 4 ⋅ 1.5 ⋅ 1.25

Leica M Stereomicroscopes – Notes 61