Example:

Eyepiece 10x/20

Objective PLAN 4/0.10

Magnification factor 1x

Total magnification 10 x 4 x 1 = 40x

Field performance of objectives

The field performance of objectives is not engraved on the objectives. It may vary within the same class, e. g. low objective magnifi- cations may well exhibit slightly higher values than the average values given below:

Objective series

max. recommended

 

eyepiece fov

 

 

15

20

22

25

Achromats

C PLAN achromats

APO L apochromats

N PLAN planachromats

PL FLUOTAR® semiapochromats

PL APO planapochromats

Fig. 92Ê Ê Optical outfit

1 N PLAN objective series for brightfield, 2 HC PLAN 10x/20

and , HC PLAN 10x/22

and

M eyepieces

2

1

Your Leica agency can supply you with a constantly updated data sheet on all Leica objectives.

Eyepiece graticules

Graticules for length measurements and grain and particle measurements

Our product range comprises the following graticules:

Graticule

 

10 mm/100 divisions

Order no. 506 950

Graticule 10 mm/100 divisions

with crosshair

Order no. 506 952

Graticule for standard series

and Snyder-Graff method

Order no. 566 950

Graticule ASTM-E-112,

 

grain size determination

Order no. 566 951

Graticule with 10 x10 x 0.1 mm

grid divisions

Order no. 506 954

Graticule with 10 x10 x1 mm

grid divisionsOrder no. 506 955

For calibrating the graticules, we recommend: Incident light stage micrometer

1 mm = 100 divisions

Order no. 563 011

Fig. 93 Eyepiece 16x/14B

1 Clamp screw, 2 Spacer rings for Leica microscopes (must be pushed up as far as the stop)

1

2

117

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Image 117
Leica DM IRB manual Field performance of objectives, Eyepiece graticules