I'm happy to say that I've completed the Luminance for the 6x5 Galactic Centre project that I'm currently working on! This is a 6x5 Full Frame Widefield Mosaic of the Galactic Centre that stretches from The Globular Cluster M22 in the bottom left to Barnards 72 Snake nebula in the bottom right, all the way up to Eagle nebula in the top left, and across to the star fields of Ophiuchi in the top right.
The focal length is 530mm, and the total area covers approximately 18 degrees x 15 degrees of the sky. I have 3 rows of RGB data and I hope to complete the colour data next month when I travel back to France for another imaging trip.