Table 3: Observing log for the four EDisCS spectroscopic observing runs.

	Exposure time [s]
	Run 1	Run 2			Run 3				Run 4
Cluster	m1	m2	m3	m4	m5	m6	m7	m8	m9	m10	m11	Repeats
Mid-z clusters:
Cl 1018.8-1211	1800		1500		5400	5400	7200					m1-m5; m3-m6
Cl 1059.2-1253		1800			5400	7200	7200					m2-m5
Cl 1119.3-1129		1800							3600	3600	3600	m2-m9
Cl 1202.7-1224		1800							3600	3600	3600	m2-m9
Cl 1232.5-1250		7200	6360	7200	7200
Cl 1238.5-1144		1800							1200			m2-m9
Cl 1301.7-1139		1800							3600	3600	3600	m2-m9
Cl 1353.0-1137		2400							3600	3600	3600	m2-m9
Cl 1411.1-1148		1500			10 800	7200	9000					m2-m5
Cl 1420.3-1236		1800							3600	3600	3600	m2-m9
High-z clusters:
Cl 1037.9-1243	3600				7200	10 800	10 800	10 800				m1-m5
Cl 1040.7-1155	3600	10 800	14 400	14 400	14 400	14 400						m1-m2
Cl 1054.4-1146	3600	10 800	14 400	14 400	14 400							m1-m2
Cl 1054.7-1245	3600	10 800	14 400	14 400	14 400							m1-m2
Cl 1103.7-1245	3600				10 800	10 800			14 400	14 400		m1-m5
Cl 1122.9-1136	3600
Cl 1138.2-1133	3600				3600	7200	7200	7200				m1-m5
Cl 1216.8-1201	3600	10 800	14 400	14 400	14 400							m1-m2
Cl 1227.9-1138	3600				10 800	14 400	14 400	14 400				m1-m5
Cl 1354.2-1230	1800				12 600	14 100	15 000	17 400				m1-m5

Notes - m1, m2, ..., m11 denotes mask 1, mask 2, ..., mask 11. The observing run can be deduced from the mask number. A typical observing strategy was to take a short exposure on a cluster in one run, followed in a subsequent run by a longer exposure in which only the spectroscopically confirmed cluster members from the short mask were repeated. Such mask pairs are listed in the column "Repeats''. The five clusters marked "'' are the main focus of this paper. These are the clusters for which long exposures were obtained in run 2.