Recent shot taken using a Pentax 6x7 300MM EDIF lens with Proline PL39000M camera
total exposure is 12H15M
Baader filters, of course!
enjoy the full rez version linked on the webpage below: it is 37 megapixels!
http://www.narrowbandimaging.com/ant...r_rgb_page.htm
http://www.narrowbandimaging.com/ima...15min_svga.jpg