M27 and halo

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Object: M 27
Date: 15.-16.07.2007
Scope, mount, camera: 12.5" Newtonian, f/5.1, MAM50, ST-10XME
Filter, exposure time: LchiRGB, L = 12*300s, RGB = (7x6x6)*600s, all binned 1x1
Total exposure time: 4h10min
Location: La Palma, Roque de los muchachos
Comments: Image seeing: 1.8"
Data reduction with THELI, colour composition in PS.