One of my "specialities" in photography is the panoramic - a type of photography where multiple photographs are stitched together to create a single, larger, image. There are all sorts of reasons to approach a scene in this way... it could be to capture a wider view than your lenses can record in a single exposure, or possibly because you need to create a larger print than your camera can manage using it's native resolution.
Here is an example from today. A single frame taken using a 24mm lens in the Langdales provided me with this image, which whilst I quite like it, doesn't capture the feel of the area as I wanted.
So... to enhance this field of view, and to capture more of the scene before me I rotated the camera through 90 degrees and took a series of 10 consecutive images, each overlapping the other by (approximately) 30 percent. The resultant frames were then "stitched" together in Adobe Lightroom to create a single, extra large, photograph with a much wider field of view.
Same camera, same lens... (me sitting on the same fence post - that was slightly uncomfortable) but a significantly different result! It also allows for a significantly larger print, which can be handy.
It is just a shame that the light changed between the pictures, the warmer tones in the first image are more pleasing.
There is more to this technique though... but that is for another time!