{HEAD ~ The present invention} has {TAIL ~ an object} to provide a shutter driving apparatus using a stepping motor to open and close the shutter sectors and capable of eliminating ripple motion of the sectors, thereby to obtain precise and correct exposure control 
has
{ HEAD ~ The present invention } has { TAIL ~ an object } to provide a shutter driving apparatus using a stepping motor to open and close the shutter sectors and capable of eliminating ripple motion of the sectors , thereby to obtain precise and correct exposure control
HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH