Jim emailed this pic to me with the following info:

“Attached is a monochrome photo of the Rosetta nebula I took at the Winter Star Party.

Telescope TeleVue 101mm f5.4

Camera:  ZWO ASI 1600 Pro,  monochrome cooled camera

Filter:  AstroDon 3nm H alpha

I used live stacking feature in SharpCap.   30 second subframes for a total integration of 63 minutes.  SharpCap allows you to easily stretch the image.

BTW, low temperatures in the Keys were about 60 degrees F!!

Jim”