Q S I 5 0 0 S E R I E S U S E R G U I D E
50
1. Produce a master dark flat following the steps above for creating a master dark frame.
2. Subtract the master dark flat from each of the flat fields.
3. Produce a master flat field by averaging the dark-subtracted flat field images.
4. Finally, divide the master flat field image into each of the dark-subtracted light frames.
Save the resulting images with names that identify the frames as dark subtracted and
scaled by a flat field.
ration in MaxIm LE
using automatic image calibration in MaxIm. Many astrophotographers prefer to
do all their image calibration manually in order to maintain the greatest control over the
calibrat
amount
images
Begin b
ur calibration frames into the same directory as your light
frames. This makes it easier for MaxIm to automatically find and characterize each of the
calibration frames.
See the section below
Combine Frames in MaxIm LE
for how to combine the now
calibrated individual frames into a master light frame. If you took multiple images through
different filters, you’ll need to create a master light frame for each filter (e.g., red, green,
blue, luminance for LRGB images).
Automatic Calib
The section above described manual image calibration in MaxIm LE. This section
describes
ion process, but used properly, automatic image calibration can save significant
s of time and yield excellent results. For complete instructions on calibrating
, please see the online help provided with MaxIm LE.
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