Abstract
In the frame of the effective-operator technique applied to atomic hyperfine structure in the lNl' configurations, we have computed ab initio, by means of the MCHF method, the electronic hfs parameters relevant to the two-body far-configuration-mixing effects on the (3d 7 4F, 4S)3,5F terms of the iron atom. The comparison with the 13 values deduced from experimental measurements by Dembczyński (J. Physique 41 (1980) 109) is satisfactory, except for three of them. One of these discrepancies remains unexplained