Abstract: The process for the production of a platelike silver halide emulsion having an AgBrI core of which the iodide content is at least 2.5 mol-% and a first shell of AgBrI surrounding the core, of which the iodide content is 40.+-.4 mol-% and at least one other shell of low iodide content, comprising (a) precipitating a core containing 2 to 20 mol-% of AgI by the double jet method at 30.degree. to 50.degree. C. and pBr 1.2 to 2.3, (b) subjecting the core to physical ripening at 60.degree. to 80.degree. C. and pBr 1.2 to 2.8, (c) growing the grains by adding silver ions and also bromide and iodide ions to the ripened core grains, the bromide and iodide each are added in an amount that the bromide iodide composition falls within the miscibility gap and (d) precipitating at least one other silver halide layer having an iodide content below 20 mol-% leads to an improved grain-to-sensitivity ratio.