Abstract
We use observations of the Chandra Deep Field South taken over two years with the Wide Field Imager at the MPG/ESO 2.2-m telescope on La Silla, Chile, to investigate how reliably shapes of faint objects can be recovered. This is a crucial test for all weak lensing studies where one uses small distortions of background galaxies to infer intervening mass distributions of galaxies, clusters of galaxies or large-scale-structure.
