The braking device is moved forward by a shutter opening member near the end of aperture opening by the shutter opening member, and is moved backward by the shutter closing member near {HEAD ~ the end} of {TAIL ~ aperture closing} 
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The braking device is moved forward by a shutter opening member near the end of aperture opening by the shutter opening member , and is moved backward by the shutter closing member near { HEAD ~ the end } of { TAIL ~ aperture closing }
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 HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL