CFHTLenS: The Canada-France-Hawaii Telescope Lensing Survey
  We present the Canada-France-Hawaii Telescope Lensing Survey (CFHTLenS) that
accurately determines a weak gravitational lensing signal from the full 154
square degrees of deep multi-colour data obtained by the CFHT Legacy Survey.
Weak gravitational lensing by large-scale structure is widely recognised as one
of the most powerful but technically challenging probes of cosmology. We
outline the CFHTLenS analysis pipeline, describing how and why every step of
the chain from the raw pixel data to the lensing shear and photometric redshift
measurement has been revised and improved compared to previous analyses of a
subset of the same data. We present a novel method to identify data which
contributes a non-negligible contamination to our sample and quantify the
required level of calibration for the survey. Through a series of
cosmology-insensitive tests we demonstrate the robustness of the resulting
cosmic shear signal, presenting a science-ready shear and photometric redshift
catalogue for future exploitation.
