The total magnification in the microscope, the reproduction ratio on the photograph or TV image can be quickly and easily measured with a scale and calculated.

n.b.: For normal viewing without the macro mirrorhousing or macrodual zoom, put on the cover to avoid disturbing overlay effects.

The mirror housing (73.11) can be rotated through 360°, for example to alter the angle at which the photograph is taken. This is done by loosening the Allen screw.

The intermediate image magnification M1 of the macro object can be worked out from the eyepiece field of view and the diameter of the object field (measured with a graduated ruler) as follows:

M1

field of view Ø

10x/20 eyepiece

= ––––––––––––

e. g. –––––––––––––––––– M = 0.1

 

object field Ø

object field = 200 mm

Viewed with a 10x eyepiece, this intermediate image of 0.1x gives a total magnification of 1x in the microscope eyepiece (0.1 x 10 = 1x).

The total magnification of the film plane of a camera is derived from multiplying the inter- mediate image magnification M1 by the magnifications of the photo eyepiece and camera attachment, e. g.:

intermediate image magnification 0.1x photo projection lens 10x

camera factor 35 mm 0.32x 0.1 x 10x1.32 = 0.32x

The total magnification at the 35 mm camera of the ORTHOMAT® E is therefore 0.32x.

Fig.Ê 74Ê

 

Slide overlay on the FSA 25 PE tube (with tube adapter)

 

1 Tube flange, 2 Coupling ring of reflection optics, 3 Reflection

 

optics, 4 Coupling ring of slide overlay device, 5 Knurled

 

focusing ring, 6 5 x 5 cm slide holder, 7 Filter slot, 8 Illumina-

 

tion adapter of lamphousing

Fig.Ê 75ÊTransformerÊ

5 7

1 2

3

4

6

8

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

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Image 91
Leica DM IRB manual Field of view Ø 10x/20 eyepiece