A layers with masks combination in Photoshop, 5 x 5 sec + 5 x 10 sec + 5 x 20 sec + 10 x 60 sec + 10 x 120 sec.
Images acquired on January 14 2007, ISO setting 800. At the bottom of this page is a bigger version.
This image was made with a modified Canon 350D, and a 20-cm (8") f/2.75 ASA Astrograph.
A layers (without masks) combination in Photoshop, 5 x 5 sec + 5 x 10 sec + 5 x 20 sec + 10 x 60 sec + 10 x 120 sec.
Images acquired on January 14 2007, ISO setting 800.
4 x 3 minutes at 1600 ISO, November 17 2006.
This verison has an unsharp mask applied to the luminance channel. It's sized to 50% of full resolution.
