54 x 5 cm diameter, 10 cm diameter at base.

Nickel wire-wound rotating Perspex cylinder on turntable.
33 x 20 x 4.5 cm satin chromed steel and hemispherical glass lens.

Denslens was one of four sculptures I made in 1974 using a wire-wrapped rotating cylinder and an emblematic lens.

In these works, the lens magnifies a portion of the surface of the cylinder and the wire acts as a coarse diffraction grating, splitting the reflected light into a spectrum of colours. The cylinder revolves and the changes on its surface are magnified through the lens in a whirl of spectral colour.