[en] Microsecond isomers in the very proton-rich N=82 nuclei ¹⁵³Lu and ¹⁵⁴Hf have been identified by γ-ray spectroscopy following mass analysis of ¹⁰²Pd +245 MeV ⁵⁴Fe reaction products using the Daresbury Recoil Separator. The decays of the isomers, interpreted as (πh_11/2)ⁿ states, are characterized. Examination of reduced E2 transition rates between (πh_11/2)ⁿ states in the N=82 isotones indicates that the half-filling of the πh_11/2 subshell occurs just below Z=71