Zeiss KF 2 ICS Especificaciones descargar pdf (Pagina 61)

100

Operation

Axiostar plus Transmitted light brightfield Carl Zeiss

B 40-815 e 12/01 3-5

• Swivel 10x objective into beam path via

knurled ring (3-4/5) of the nosepiece.

• Look through the fixed eyepiece of the

binocular tube (3-4/6) first and focus on the

object via the focusing drive (3-4/1).

• Then set the focus for the other eye by

turning the eyelens of the focusing eyepiece

if necessary.

• Close luminous-field diaphragm (3-4/2) until

it is visible in the field of view, even if not in

focus (3-4/A).

• Use the condenser (3-3/3) to adjust the

condenser until the luminous-field

diaphragm is sufficiently in focus (3-4/B)

• Center luminous-field diaphragm (3-4/C)

using both centering screws (3-4/4) and

then open it until the edge of the

diaphragm just disappears from the field of

(3-4/D).

• For aperture diaphragm setting (contrast),

remove one eyepiece from the tube and

look into the tube with your naked eye. Use

lever (3-4/3) to set the aperture diaphragm

to approx. 2/3 ... 4/5 of the diameter of the

objective exit pupil (3-4/E). In most

applications, this setting of the aperture

diaphragm provides optimum contrast at

almost full resolution and therefore the best

compromise for the human eye.

• Replace eyepiece into the tube.

1 Focusing drive

2 Luminous field diaphragm

3 Lever for aperture diaphragm setting

4 Centering screws for condenser

5 Knurled ring - nosepiece

6 Binocular tube

Fig. 3-4 Setting transmitted-light brighfield for

KÖHLER illumination

☞

The size of the field of view and objective

aperture changes every time an objective is

switched; therefore, you must reset field of

view and aperture settings for optimal results.

For objectives < 4x, the swivel wide-angle unit

must be moved into the light path (see

section 2.9).

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