Photograph copyright: DAVID McMAHON (Image ID: 120-1234)
No, I wasn't using a fisheye lens - but by concentrating on this bauble, high up on a five-metre Christmas tree, I have managed to acquire a fisheye effect of everything above and behind me. What you see here is a very low-res image, so if you want to see the original full-size file, just click here to view it on my Red Bubble site.
This unusual Yuletide image was shot in Melbourne last November. These giant Christmas trees are on display in a public area and in order to shoot this bauble placed so high on the tree, I had to use my 300mm lens at full stretch!