Make a new RAW

In the Panorama Merge Preview window, choose the Projection that gives the best results (Spherical, Cylindrical or Perspective) and to tidy the edges, move the Boundary Warp slider to 100. Click on Merge and you’ll be asked to save the panorama as a new DNG format file. Click Save and a new RAW file will be created and will appear in the interface with all the regular RAW controls on display over on the right. Click on the Lens Corrections tab (or hit Ctrl+Alt+6) and tick the two boxes to fix any chromatic aberration (fringing), distortion or vignetting in your lens. It’s likely that your lens will be recognised automatically when you tick the Enable Profile Corrections box, but if not, just select the Make and Model from the dropdown lists under Lens Profile.