For optimal viewing the monitor must be calibrated such that all shades of the gray scale are visible.
Click on the images to see a larger version with description.
SH2-254 thru SH2-258
SH2-206 (NGC 1491)
SH2-184 (NGC 281, Pacman Nebula) and IC 1590
SH2-170
SH2-162 (NGC7635, Bubble Nebula)
SH2-142 (Wizard Nebula)
SH2-112
SH2-105 (NGC 6888, Crescent Nebula)
SH2-101 (Tulip Nebula)
M27
SH2-86
SH2-252 (NGC 2174)
SH2-261