User manual

tain ap e rtur es, 1 7~ , %, ~ a nd 7E , a nd th e tension
numb ers 1 to 6.
THE CURTAIN Th e curtain contains fiv e ape \'-
A PERTURE tur es ranging from "full open-
ing " 0 to 7E of an inch . Wh en
th e lett er 0 app ears at F the shutt er is wide open.
Th e other apertures 1 Yz, %, ~ , 7E follow in rota-
tion at
F as th e key A is turn ed_ to th e left.
SETTING THE Th e s hutt er is set by turning
SHUTTER key A to th e le ft until th e re-
quired
apertur e is indicat ed at
F. If the curt ain is alr ea dy set so that anyon e of
th e ape rtur e numb ers 1 Yz , %, :y8 or 7E app ears at