Canon Speedlite 580EX Speedlite 580EX Manual - Page 27
Stroboscopic, Flashes
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To avoid o\~~erheating and deteriorating the flash head, do not fire mare than 10 stroboscopic bursts. Then allow thQ Spaedlite to rest for at least 10 min. L1 - Stroboscopic Flash is mast effective wish a highly reflective subject against a dark background . * Using a tripoJ, a remote ssviECh, and external power source is recommended . " A flash output of 1!1 or 1!2 cannot 6e set for stroboscopic flash . . Stroboscopic flash ran 6e used with "buLb-" o If the number of flashes is displayed as--, the firing will con:irtue until the shutter is closed or the battery runs out. The number of flashes will be limited as shown 6y the table below. Max . Stroboscopic Flashes Flash Dufpv~ ~s 1 2 3 4 5 fi-7 8-9 114 7 6 5 -~ 11 3 3 9l8 14 14 12 10 8 6 5 1116 30 3D 30 20 20 20 10 7132 60 80 60 50 54 40 30 1164 90 90 90 89 89 70 60 11128 100 100 100 100 100 90 80 Flash OvrtpLt Hz 10 11 72-74 75-19 20-50 6D-199 114 2 2 2 2 P 2 118 1116 1132 1164 1/1 28 4 4 4 4 s 4 B S 8 8 8 8 20 20 20 18 16 52 50 40 40 35 30 20 1 70 f 70 f 60 1 50 ~ 40 ~ 43 o If the number of flashes is displayed as--,'he insxirrwrn nurriber Of flashes will be as shown by the table t:rlnv: regardless of the firing frequency. Flash .0utpuY ' Flash es 114 118 1110 2_4~ 8 1132 12 1164 20 11128 40 I 25