Today I was surprised to see a very prominent parhelic circle (http://www.atoptics.co.uk/halo/parcirc.htm) while having lunch with friends on our terrace.
I rushed to our rooftop terrace to take some pictures of the spectacle. Using the 14mm f/2.8 Samyang (Rokinon, Walimex) I was able to create an allsky panorama using the software Hugin.