
QSI 500 SERIES USER GUIDE
Cooling Control For camera control applications that do not provide a way to
enable cooling or control the set point temperature, cooling
can be turned on by clicking the checkbox next to “Cooler
On.” The desired temperature can then be set in the text box
in degrees Celsius.
Filter Wheel For camera control applications that do not provide a way to
setup and/or control the filter wheel, click the “Setup…” button
to assign names to the filter positions of your camera.
Enable Pixel Masking
Enable Pixel Masking is an advanced function that does not need to be used under most
normal circumstances. Click the “Enable Pixel Masking” checkbox to expose a table of
pixel X, Y values (see dialog box below) Enter the X,Y coordinates of a pixel that you wish
to be “masked” or ignored.
When a pixel value is “masked” its original value is replaced with a constant, typically 200.
It can be used to replace the value of excessively bright or dark pixels with a known value.
This function can sometimes be handy, for instance, when using guiding or focusing
software the automatically selects the brightest pixel in the image. If the brightest pixel is a
hot pixel rather than a star, then masking the pixel will allow the software to function
correctly.
Some camera control applications offer more sophisticated methods of interpolating missing
values from the values of surrounding pixels. See your software’s User Guide for additional
details.
Click “Add Pixel” to add another entry in the Mask Pixels table. If a pixel entry is selected,
the new entry will be entered above the current entry. If no pixel is selected, a new entry will
be added at the end of the table.
Select a pixel X or Y value and click “Delete Pixel” to delete that pixel value from the Mask
Pixels table.
Note: Pixel values are stored by camera serial number in the registry of the
connected computer. If you have multiple QSI cameras, separate “Mask Pixel”
tables will be automatically maintained for each camera.
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