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EXPOSURE / PROCESS
OPERATION SEQUENCE
S9 opens when previous pack removed
●
S6 closed during the erecting mode
●
S8 closed until film cover ejected
●
Gears between front cover and gear train
●
mesh as cover closes (3
S7 closes during front cover closure
●
resulting in dark slide ejection after a
AMBIENT
new pack inserted
S8 opens (counter set to 10)
●
S1
CLOSED BY OPERTOR
Solenoid #1 power up
Shutter starts to close
Shutter close
S4 BC
S4 SWITCHES AC to BC
Cam rotates
Mirror released
S5
OPENS
Motor braked
Cam stopped at 20°
Electronic latch ON
(S1 may be opened)
Mirror continue to rise
S3
OPENS 26° 34°
Y delay activated
Mirror at rest
End "Y"
POWER RELEASED FROM SOLENOID #1
Shutter starts to open
S4 AC
S4 SWITCHES BC to AC
20 to 35 ms
Starts integration ambient
Shutter at full open (f/8 16)
ST 2
EXPOSURE COMMAND SIGNAL COMPLETE
Solenoid #1 power up
Shutter starts to close
Shutter close
S4 AC/BC open
S4 BC
S4 SWITCHES AC to BC
Motor starts
Fresnel starts down
Cam moves from 20° position
Solenoid #1 power down
Mirror carrier starts to drive counter
S3
CLOSES
S5
CLOSES
Electronic Latch off
Motor stops
(if S1 closed, Solenoid #1 remaing in power down)
Shutter opened (provided S1 is open)
Counter set to next position
rd
& 4
th
idler)
FLASH
End "Y"
S2 → Closed if flash array inserted
S1
T - 0
S4 BC
S5
Solenoid #2 power up (S2 closed)
S3
Solenoid #2 power down
Y Delay
40 ± 5ms
Flash delay FD circuit actived
Switches power to falsh circuit (S2 closed)
S4 AC
20 to 35 ms
Solenoid #2 back
at the end of flash delay (FD); ST 2 shorted out; time
FF
out interval FT initiated.
FLASH
25 to 34 ms
Note 1. No flash fire signal if:
FT
Note 2.
Removes power from flash circuit
S4 BC
20° - pick starts
45° - spread starts
50° - pick stops and latches
130° - mirror starts to recock
S3
260° - spread stops
325° - mirror is recocked, pick returns
S5
345°
onf
(power off) triggers FF circuit
a- S9 closed (empty pack)
b- new pack inserted with array already
inserted (S8 function)
A 25 to 34 exposure results if the array
does not fire
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