It must have been in the 1960’s that I first saw pictures taken with a circular fish eye lens. In 2018 I found Nikon came out with a 8-15 mm zoom, that at the 8 mm end produced that circular image. I bought one and decided domed buildings like the mausolea and mosques I like so much would be perfect to let it loose. This is one of the results.

Detail from the stonework on the side of the mimbar (the pulpit used by the imam for addressing the congregation).

This design is based on interlacing hexagons or octagons within the frame of a wheel, set in an equilateral triangle. Early 15th century Ottoman.

Correspondent: J.M.Criel, Antwerpen.
Source: ‘Islamic Architecture: Ottoman Turkey’ (Godfrey Goodwin) – London 1977