After having chased these two hawker migrants for some time at a distance (which is why I was using the long lens) they decided to alight right on the edge of the pond where they were pounced upon by five ravenous photographers. The biggest challenge was getting a clear shot! A high shutter speed, image stabilization and bright sunlight made getting a sharp shot a doddle (click here for a larger version). The 1.4x converter helped get just enough magnification. I took shots from different angles, trying to get both dragonflies eyes in-focus, and also to get a pleasing background to bring out the wing detail.
It turned out that one of the photographers was a dragonfly expert and it was great fun chatting to him.
Canon 30D, 300mm f/4 IS, 1.4x converter.
ISO 400, f/10, 1/400 sec