Two Forms (Divided Circle) fire at her studio in St Ives in 1975. It includes two vertical bronze semi-circles forming a broken circle approximately across, each pieced pierced by one large hole. Both elements are welded to a bronze base. All three elements are hollow, and were cast in London by Morris Singer. Hepworth designed the work after being diagnosed with cancer in 1966. She wanted the viewer's body to be engaged with her work, saying: "You can climb through the Divided Circle – you don't need to do it physically to experience it." Hepworth also made a series of nine maquettes about tall,
Four Thirds system DSLRs. The smaller flange focal distance allows for more compact normal and wide angle lenses. It also facilitates the use, with an adapter, of lenses based on other mounting systems, including many manual focus lenses from the seventies and eighties. In particular, Four Thirds lenses can be used on Micro Four Thirds bodies with an adapter, however, "all of the functions of the Micro Four Thirds System may not always be available." Four Thirds system The Four Thirds System is a standard created by Olympus and Eastman Kodak for digital single-lens reflex camera (DSLR) and mirrorless camera design and development.