The redshift distribution of faint galaxies — Implications for gravitational lensing

The redshift distribution derived from complete samples suggests that the majority of blue galaxies dominating the faint field counts are moderately low redshift z<1. Additionally, new results in distant clusters suggest the presence of numerous old red galaxies at z≃1. I question whether these observations are consistent with the first results on the predominantly blue population of very faint galaxies background to z≃0.4 clusters as deduced from lensing studies.