This looks promising... This is a 6 pane mosaic of the Butterfly nebula. It is only 1x600s in each pane as I wanted to check that it all fitted together before carrying on.
The mosaic was stitched together using the new Astro Pixel Processor software and despite some teething problems with settings it eventually went together well. No visible joins, it looks like this software is going to be very good indeed.
Sara Wager is an astrophotographer with published articles and images to her name