Richard Fleet, webmaster of Glows Bows & Haloes produced this hosepipe bow.
The camera field of view was not enough to take in the entire rainbow and so he carefully took a number of images while keeping the camera in the same position as far as possible. This is his eight image montage.
He says "All you need is for the sun to be high enough and to spray water over a wide enough area. For taking pictures a completely calm day helps, otherwise it is quite hard to keep the camera dry. If you don't mind getting wet then getting into the spray helps. When the spray drops are very close you can get overlapping bows, one for each eye."