I thought it might be fun to find supernova SN 1987a in amongst all the nebulosity. Here's the result. A mere 900% enlargement!! A bit extreme of course, and forgive the resultant artefacts, but at least you can see the colour of the expanding shell! The field of view is a tiny 3.9 x 2.7 arcmins. BTW, I only did some curves processing - no sharpening at all.
Small:
http://www.pbase.com/gailmarc/image/132258981/large
Large: (Next to a full res crop of my 30 Doradus image)
http://www.pbase.com/gailmarc/image/132258981/original
Not quite a Hubble image (!)
but, like I said, a bit of fun!
Cheers, Marcus