Hi all,
This image is degraded by air currents in my 'scope, which I didn't realise until inspecting the image closely. Nevertheless this wide field image still looks acceptable.
The image is a stack of 16 x 2-minute exposures (32-minutes total) @ ISO-400 with the modified Canon 300D at the 2-inch prime focus of my 12-inch f/5 GSO scope on GEM. Hand guiding done with 4.5" f/18 guidescope. Used the 2" Baader Coma Corrector and 2" Baader UV/IR Cut Filter.
Dark frame subtraction, bias and flat-fielded in Iris, processed in Photoshop, some Noiseware used.
There's a higher resolution image here
http://www.skylab.com.au/pmsa/ngc6618_DSLR_copy(1).html
Paul M