The metaphor of light for knowledge runs deep in our everyday language: ‘bring to light’, ‘enlighten’, ‘see the light’, ‘dim understanding’, ‘shadow of doubt’ etc. But too much illumination can leave us imperceptive, as indicated by the notion of being ‘blinded by the light’. The sun’s great paradox is that while it allows all seeing, we can’t see it directly; and if we do try to look at it we damage our eyes (which, incidentally, Plato referred to as the most ‘helioform’ and thereby most divine of the sensing organs). For her acclaimed series The Sun (2005-), Rika Noguchi has used pinhole cameras to visualise the solar body’s obfuscating effects on the eyes of its mortal Earth-bound observers. She currently has a solo show at Izu Photo Museum in the foothills of Mt Fuji (until March 2012).