2014-06-21 * The North America and Pelican Nebulae in the constellation Cygnus
** NOTE: As with the image of the Veil Nebula, the bloating of the star images in this image was caused by some dew that was on the lens during the half hour required to make the exposures.
*******************************************************
Nikkor 80-400 mm lens on Nikon D800 camera body (modified, red blocking filter removed), at 400 mm; ISO 2500 at f/7.1.
Six 6-minute exposures (minus 3 dark frames), stacked in Registar and processed in Photoshop CS6
*****************************************************
2014-06-21 * The North America and Pelican Nebulae in the constellation Cygnus
** NOTE: As with the image of the Veil Nebula, the bloating of the star images in this image was caused by some dew that was on the lens during the half hour required to make the exposures.
*******************************************************
Nikkor 80-400 mm lens on Nikon D800 camera body (modified, red blocking filter removed), at 400 mm; ISO 2500 at f/7.1.
Six 6-minute exposures (minus 3 dark frames), stacked in Registar and processed in Photoshop CS6
*****************************************************