We present H{alpha}-derived SFRs for three z~0.75 galaxy clusters. Our 1{sigma} flux limit corresponds to a star formation rate (SFR) of 0.10-0.24h^-2^100_M{Sun}/yr, and our minimum reliable H{alpha}+[NII] rest-frame equivalent width is 10{AA}. We show that H narrowband imaging is an efficient method for measuring star formation in distant clusters.
Cone search capability for table J/ApJ/630/206/table3 (H{alpha} data for CL 1040-1155 galaxies)
Cone search capability for table J/ApJ/630/206/table4 (H{alpha} data for CL 1054-1245 galaxies)
Cone search capability for table J/ApJ/630/206/table5 (H{alpha} data for CL 1216-1201 galaxies)