Levenhuk DTX 90, User Manual

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File
Photos Directory
: set a directory for captured images.
Videos Directory : set a directory for recorded videos.
Options
Resolution
: set image resolution.
Date/Time : hide or display date and time of capture during preview.
Language : change the language of the user interface.
Crossing : hide or display a grid on images.
Full screen mode : go full screen.
Capture
Photo
: capture an image.
Video : record a video.
Save as
Copy to clipboard
Copy file
Previous image
Next image
Undo the last action
Repeat the last action
Draw
Text
Measurement
Calibration
Capturing an image
Click the corresponding icon on the toolbar or select Photo from the Capture menu.
Recording a video
Click the corresponding icon on the toolbar or select Video from the Capture menu.
Sequence capture
Click the corresponding icon on the toolbar. A dialog window will appear where you can set a number of
parameters for sequence capture. Click the
Photo radio button to set the time to begin capturing
images, interval between them and the total number of images. Click the Video radio button to set the
time to begin recording videos, their duration, interval between them and the total number of clips.
Calibrating
Before calibrating the microscope, turn the grid display on. To do so, select on from Options > Crossing .
By default, the grid is visible. Place the calibration scale on the stage and focus your view. Make sure
that the vertical axis of the grid is parallel to scale divisions and capture an image. Double-click the
image thumbnail to open it in a separate window.
Click the corresponding icon on the toolbar to begin calibration. Using your mouse, choose two points on
the image (you have to know the actual distance between these two points). Once you choose the second
point, a dialog window will open, where you have to enter the known distance in the
Actual dimension
field. The application will automatically calculate the magnification of the image. Click OK to close
the dialog window. The calculated magnification will be displayed in the Magnification field.
Note: chosen points should form a horizontal line.
You can check calibration results by measuring the same distance with the Any Angle Line tool.
Click the measurements icon, choose the Any Angle Line tool and draw a similar line on the image.
If the measured distance is equal to the actual distance, calibration has been successful.
Recalibration
The calibration process has to be repeated if the magnification or focus has been changed during
observations.
Click the corresponding icon on the toolbar again and select Reset picture magnification from Reset
magnification . Repeat the calibration process, as described above. Change the magnification and
capture a few images. Double-click one of the thumbnails to open the resulting image in a preview
window. Click the calibration icon on the toolbar and select
Set picture magnification from Set
magnification . Enter the current magnification in the dialog window that appears and click OK .
If you want to use the same magnification when capturing images in the future, click the calibration icon
on the toolbar and select
Set capture magnification from Set magnification .
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