Leica DM IRB manual Total magnification in the eyepiece would therefore be

The total magnification can be roughly calculated with the scale divisions on the macrodual zoom:

The following factors have to be multiplied for this:

–Magnification factor of the working distance (scale (73.9), e. g. 0.11x)

–Zoom factor (scale (73.8), e. g. 1x)

–Correction factor of the reflection optics (without engraving 1.17x)

–Eyepiece magnification (e. g. 10x) e. g. 0.11 x 1 x 1.17 x 10 = 1.29

The total magnification in the eyepiece would therefore be 1.29x.

Use of the macrodual zoom as a drawing device Drawing microstructures under the microscope has the advantage over photomicrography that significant details can be highlighted and that structures can be depicted in three dimensions. This is not possible with photomicrography. Apart from this, drawing with the superimposed image method is a valuable didactic exercise.

It is done by superimposing the drawing area (the area of the stage under the mirror housing of the macrodual zoom) onto the microscope image. The drawing area or sheet of paper is homogeneously illuminated with a stand lamp or table lamp.

The microscope illumination and illumination of the drawing area are matched providing the lamps are adjustable; otherwise the brightness of the drawing area can be varied by altering the proximity of the lamp.

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