Remote Control Socket; Double Exposure - Hasselblad 553 EL Instruction Manual

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Mode Selector DiaV
The selector dial offers five release modes tor the
camera.
O- NORMAL MODE. Exposure occurs when the
release plate is depressed. The film is advanced.
the shutter cocKed and the mirror returned to
viewing position v^en the presure on the release
plate is removed.
S - PRE-RELEASE. When the dial is moved to
ihts positbn the lens shutter is cbsed, the dia¬
phragm slops down to the pre*selected aperture.
the mirror swings up and the auxiliary shutter
opens. Only the actual operation of the shutter
rerrains when the release plate is pressed. Since
most of the camera operations are pre-released,
Ihe camera's reaction time between release and
exposure is reduced to a minimum, as is camera
induced vibration The selector dial is not re¬
tained in the S-po6ltion but returns to me 0-
position when released.
R$- The camera ts pre released when the mode
selector is rDoved to RS where it is held, and con¬
tinues to pre-release after each exposure until
Ihe mode selector is returned manually to the 0
or A position.
A-Automatic. The camera makes a continuous
sequence of exposures as long as the triggering
impulse is applied, and unexposed film remains
in the camera. The sequential exposure rate in
this mode is about 1 frame/sec.
AS - The camera is pre released in AS and
exposes sequentially as bng as the exposure
button is kept depressed. At the end of the
sequencer the cairiuia leiiialiis in d pre*tel«d&eJ
State. The exposure rate is slighily faster than in
the A posilioh,
Remote Control Socket
At Ihe rear of the motor housing on the hght hand
side is a 5-pole DlN-socket. You can use this to
operate the camera by means of the release
cords {SK and lK), a timer or any means that
closes the circuit between pins 1 and 3 (seepage
38, Circuit Diagram). The external resistance
should not exceed 8 ohms and the circuit should
remain closed at least 0.1 sec for reliable
tnggering.
Double Exposure
The camera has boon designed to prevent acci-
dental double exposure. Intentional double and
multiple exposures on the same frame can be
carried out as follows:
1. Depress the release plate and keep It de¬
pressed. The magazine status indicator now
shifts to red.
2. Move the LOT lever to the L position and relax
Ihe pressure on ihe release plate.
3. Insert the magazine slide and remove the
maga
2
tn$ from the camera
4. Return the lever to the 0 position. The cam¬
era will wind on.
5. Replace the rrtagazine and remove the slide.
The unll Is now ready to make asecord exposure
on the same frame even though the magazine
indicator is red. You can make additional expo¬
sures ih the same manner.
The magazine status indicator remains red until
the magazine
1
$ left on the camera and wound
on.
16
17

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