I don’t mean that these photographs were made with a wide-angle lens; more likely some degree of telephoto.
Most commonly, they are crops of a single exposure. Occasionally, as this first photograph, two or three photographs that have been made by shifting the lens to the right and left, combining them in the computer and cropping the result.
The most common format (ratio) on SLR film cameras and now digital cameras has been 3:2 Ironically I find that too wide, for most of my photography. Over the years I have owned a number of cameras with different formats, 3:2, 4×3, 6×7 and so to have a single format (convenient for things like framing) I have standardized on 4×5 (also known as 5×4).
I had previously standardized on what is known as half-plate (6.5×4.5) but found it caused more work than it saved, and so I switched to 5×4.
But I do like this wide, panoramic format, for some photographs, it just seems to sing.
Click on an image to see bigger.