Capture
This is a combination of two different capturing runs. The first was a single DSI frame centered on the galaxy core and reaching out to the edge of the galaxy. The second was a mosaic of two images that covered more of the sky around M81.
Processing
The biggest problem I had was matching up the different images to generate a seamless composite. In the end I had to resort to manual Photoshop methods to mask out different background areas and alter them to match the other images.
