Despite of Moon glow I tried a long exposition of this nebula in two differents days: 04 and 06.
Due to problem with periodic error and polar alignment, I needed to stack two groups in DSS and stack the results in Photoshop.
(No filters, coma corrector or guiding - No problem with angular position misalignment of camera.)
GSO 305 mm - Canon Rebel XT - iso 1600 - 1 h 7 m - 30 s subs
large scale
http://i1063.photobucket.com/albums/...ngc6357_2k.jpg