M51, taken April 22, 2006 with 5-inch apo refractor at f/4.5 and Canon 20Da camera at ISO400. Four 10-minute exposures average-stacked.
Taken April 19/20, 2006 with Astro-Physics 4-inch Traveler apo refractor at f/6 with 6x7 field flattener in place as well. Canon 20Da camera at ISO400 and stack of 4 x 16 minute exposures, on mild spring night. Some slight field rotation between frames due to misalignment. Frames de-rotated in Photoshop. Each galaxy masked and punched up a bit mroe with Curves and Selective Color.
A composite image of the appearance of the Sun and solar corona around the New Moon at the total eclipse of the Sun on March 29, 2006, as seen from the desert of Libya south of Tobruk. This is a stack of 7 exposures, from 1/800th second to 0.8 seconds, merged with Luminosity masks created by ADPPanel+ Pro extension plug-in for Photoshop. Sharpening and coronal streamer enhancement performed with mutlitple applications of successively smaller high pass filters, masked to affect only the corona, not the lunar disk. Adustment layers added for the sky and lunar disk. Original images shot with a Canon 20Da camera at ISO100, through a 66mm aperture apo refractor at f/7, untracked. Each image had to be manually aligned and registered. Re-processed from the original Raw files for my ebook on How to Photograph the Solar Eclipse.
