Imaging from under the ever increasing light spill of Sydney is always a challenge. But I was curious to see how deep I could go with a modest exposure and reasonable seeing.
The answer seems to be magnitude 19.5.... as I managed to determine from this less imaged target (50% resolution to keep it web friendly)
It would be interesting to see what the result would be under a truly dark sky,
but I have a suspicion this is not too bad a result for an urban sky.
The link is here