I had the opportunity to look into a 16inch dobsonian collapsible telescope from a Helios member.
Observations were done when it was not yet dark and seeing was moderate, but those observations were already awesome, even comparing with my 12inch scope.
Messier 13, 51, 68, 81 and the Eskimo nebula was observed and what great details could be seen.
The moon was seen using 32 ocular (x60) resulting in a "3D image".
Picture was taken afocal with iPhone 6.