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OPERATION
Axioskop 40
Carl Zeiss
Illumination and contrast procedures
Axioskop 40 FL
3-28
B 40-810 e 12/01
•
Replace eyepiece in the tube.
•
If the height of the dark field condenser has
been set correctly enough, any visible
brightening in the field of view can be reduced,
and the luminous-field diaphragm image will be
almost perfectly in focus.
•
Finally, match the diameter of the luminous-
field diaphragm to the size of the field of view.
☞
Dark field microscopy requires specimens to be considerably cleaner than in other techniques.
Fingerprints, dirt or dust particles, in particular, have negative effects, since they brighten the
background of the field of view and decrease the contrast of the object image.
Fig. 3-23
Centering dark field stop on the
universal condenser
Summary of Contents for Axioskop 40
Page 1: ...Operating Manual Axioskop 40 Axioskop 40 FL Routine microscope...
Page 14: ...INTRODUCTION Axioskop 40 Carl Zeiss Axioskop 40 FL 0 14 B 40 810 e 12 01...
Page 30: ...INSTRUMENT DESCRIPTION Axioskop 40 Carl Zeiss Axioskop 40 FL 1 16 B 40 810 e 12 01...
Page 77: ...Axioskop 40 OPERATION Axioskop 40 FL Carl Zeiss B 40 810 e 12 01 3 3...
Page 128: ...OPERATION Axioskop 40 Carl Zeiss Axioskop 40 FL 3 54 B 40 810 e 12 01...
Page 146: ...APPENDIX Axioskop 40 Carl Zeiss Axioskop 40 FL A 8 B 40 810 e 12 01...