Farne Islands from Seahouses, Northumberland

Two images, taken during August 2014, were stitched together to create this photo of the Farne Islands from Seahouses, Northumberland.
The technical information is as follows.
Camera - Canon EOS 5D Mk II
Shutter speed - 5s
Aperture - f20.0
Lens - Canon TS-E 45mm f2.8
Focal Length - 45mm
ISO - 50
Filters - Hoya 77mm Pro1 DMC Circular Polariser, Lee 0.6 ND, Lee 0.9 ND