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3.9. Why can't I change the filter turret position with my Leica microscope using Volocity?

You may find that if you are using a fluorescent position in the microscope's reflector turret it does not move to the transmitted light position when requested in the software. Although it cannot be moved via the software, it is possible to move to transmitted light position using the buttons on the scope. This is because Leica microscopes often have a Contrast Mode setting. For instance Contrast Mode can be set to 'Fluorescence', 'DIC', 'DIC and fluorescence' etc

To avoid this problem either use a combination mode such as 'DIC and fluorescence' or include the Contrast Mode in the lightpath:

  1. Make sure the contrast mode is in the desired setting.
  2. Double click on the desired lightpath button in the Video Preview.
  3. In the Device checklist ensure 'Contrast Mode' is checked then click Save.


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