Trying to take pictures in a revolving restaurant at night can be a challenge.
It takes an hour for the restaurant to revolve 360, so you only have 3-4 chances at the same location.
Reach as far as you can behind you and put the camera down on the floor ridge at the glass
that doesn't move. start focus,start 2 second shutter delay, manual exposure and aperture settings. 15 seconds shot - no good.
Start again, lower exposure, same aperture, too much glare. Start again... Start again...
Look up to find wife glaring at you... not good, but I got the shot! HA