The images below were taken from ESAC using the DSI camera and the 6" AS-GT reflector. The sky transparency was not very good and at some point got cloudy.
M27 - A single exposure of 1 minute, saved as 3-colour FITS. Histogram modified with DS9.
M57 - a single 1 minute, saved as 3-colour FITS file
M13 - a single 8 sec exposure, saved as 3-colour FITS. Two different ranges for
displaying purposes