"Trigger ever
Sector gear sto lever
——
When preview operation
sary
===
When reset to full-opening
Pv set ver
Py retease lever
Sw PY
ease pate
Preview button pressing
| ,
part way down
'Sw. Pv: ON
Sw. Pv, OFF [by releasing
preview button)
Preview button pressit
all the down
as
Gears disengaging
Aperture resetting to
full-opening
Contral-mechanism charging
Preview button releasing