The DVTI control tool version 4.9.10 writes the following FITS header fields:

• SIMPLE = T
• NAXIS = 2
• NAXIS1 = (image width)
• NAXIS2 = (image height)
• BITPIX = (number of bits per recorded pixel, 8 or 16)
• BSCALE = 1.0
• BZERO = 32768
• DATE-OBS
• EXPTIME = (exposure time)
• RA = (RA, if telescope position is valid)
• DEC = (DEC, if telescope position is valid)
• OBJECT = (Object name from image metadata dialog)
• TELESCOP = (Telescope name from image metadata dialog)
• INSTRUME = (Instrument name from image metadata dialog)
• OBSERVER = (Observer name from image metadata dialog)
• COMMENT = (Comment from image metadata dialog)

In DVTI tool 4.10.(?), the following fields have been added:

• XBINNING = ...
• YBINNING = ...
• GAIN = ...
• (todo)