My Olympus M 1 Mark iii has a couple of cool features that I love. Starry Sky AF. Most Oly cameras have standard options for taking cool longer exposures called LiveComposite.
When using the Starry Sky AF, the camera seeks out stars and locks in focus! Amazing. I did that Friday night even with the nearly full moon and clouds moving in. I thought I'd experiment for a bit later this year when I'd like to go to the KVR ponds on a clear night and photograph star trails reflected in the water.
Here is a crappy shot of the camera doing its thing, taken with the cell phone.
It was like a weird social experiment.