Zeiss Axiocam 105 color, Инструкция по установке и справочное руководство

Страница: 30 / 53

Image Acquisition
22 Printed 10.2013
Exposure
The camera’s exposure time can be adjusted to the lighting conditions on
the microscope using a slider or by entering an exposure time directly into
the input field. When entering the exposure time manually you can state the
value range directly using the abbreviations "ms" for milliseconds and "s"
for seconds.
Exposure time measurement
The program assists in calculating an optimum exposure time, at which the
camera will be maximally saturated without being overexposed. To perform
this calculation, click on the button.
The exposure time calculated is available for subsequent images. It can be
changed at any time by moving the slider or by entering a new exposure
time manually.
This measurement function uses all the image information from the camera
sensor for the exposure measurement as standard (integral measurement).
Weighting of exposure time measurement
During an exposure time measurement an attempt is made to expose the
camera in such a way that the sensor is not overexposed in any area of the
image. The value calculated therefore corresponds to 100% of the
camera’s maximum exposure range.
The exposure time measurement can also be adjusted to particular lighting
conditions. If under certain acquisition conditions the exposure time
measurement does not achieve satisfactory exposure of the areas of the
image in which you are interested, it is possible to influence the result of
this measurement by adjusting the weighting.
A setting of 50% means that by pressing the button, 50%
of the exposure time is measured and set for actual acquisition.
The setting range is between 10% to 200%.