Wonders of a non-modified 300D: 66x8' exposures in four separate nights, with transparency varying from mediocre to awful (mag 5 down to mag 4). Is0 400, Celestron 8 f 6.3. The low red sensitivity of the unmodded 300D required a very long exposure (almost 9 hours in 4 different nights), but it enhanced the subtle colour differences. 66X8' iso 400. Asinh stretching with Iris, wavelet filtering for the nebula central area, final curves and levels in Photoshop CS.
Copyright © 2005 by Gimmi Ratto. (July 6, 2005)