My best image of the M13 star cluster to date reaches deep into its core. Thanks to David Lee, Reg Dunkley and Dan Posey for staying till the end of data collection.
Details
2.5" OGS scope on Paramount ME mount. QHY 600ph camera with Optical flattener. QHY guide camera.
Exposure - 3 - 240s exposures for each of LRGB filters. Processing in Pixinsite and Photoshop.