Automatic Exposure - Zeiss AxioCam MRc5 Installation Reference Manual

Image Acquisition with the AxioCam MRc5
A setting of 200% means that 200% of the exposure time set in the display
window or measured by pressing the appropriate button is used for actual
acquisition.
A setting of 50% means that 50% of the exposure time set in the display
window or measured by pressing the appropriate button is used for actual
acquisition.
The setting range is between 5% to 500%.
EXAMPLE:
A thick sample is acquired in bright field. The empty image background is
much brighter than the darker sample. The measurement produced an
exposure time of 50 ms, at which the background would not be overexposed
during acquisition. Setting a correction factor of 200% extends the effective
exposure time to 100 ms, which ensures that the darker area of the sample is
exposed more brightly. The brightest area of the image, which is not of
interest, is overexposed here by 200%.

Automatic exposure

The software sets the exposure automatically for each individual shot when
the check box Automatic is activated. This makes it possible to generate
acquisitions with the correct exposure without having to enter manual
presettings. For each individual acquisition the correct exposure time is
calculated and set in advance.
The exposure measurement button
time. This is useful if you want to update the exposure time for a current live
image. If you deactivate Automatic, the program will continue to use the last
setting calculated.
NOTE:
In this mode it is not possible to edit the exposure times in the
multichannel mode for the individual channels.
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can be pressed at any
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