... years into the past to view a gravitational lens bending the light from galaxies – a phenomenon ... the Chandra X-Ray Observatory, the Sloan Digital Sky Survey (SDSS), and the Two Micron All Sky Survey (2MASS). While each of these archives carries ...

Software to capture and remove lens aberration with highest precision (radial and tangential distortion, ... a clear revaluation of photographs taken with cheap lenses. The calibration parameters are automatically calculated from pictures ... as table (e.g. for quality control and camera lenses evaluation) Excellently suitable for engineering purposes (development/verification of optical systems), ...