It is a secondary object of the present invention to provide {HEAD ~ a braking device} which is effectively interlocked with {TAIL ~ a synchro switch} to prevent erroneous flashing of the speed light from taking place 
is effectively interlocked with
It is a secondary object of the present invention to provide { HEAD ~ a braking device } which is effectively interlocked with { TAIL ~ a synchro switch } to prevent erroneous flashing of the speed light from taking place
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH REL REL REL REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH