Hasselblad 500C/M Instruction Manual page 13

Fig 19
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Fig 20
not pre-released. (**Pre-release"', р. 13.) Press
the button (37) with your left index finger.
Twist the lens counter-clock wise one tenth of
a turn and remove it.
NOTE. The 500EL/M must not be set at
RS or AS when lenses are changed.
Lens attachement
Ensure that the camera is cocked and not pre-
released. Make also sure the lens is cocked.
The slot (A) on the cocking shaft should point
to the red index dot (B). (See 'Shutter
cocking" below for cocking untensioned,
detached lenses.)
Carefully insert the lens into the camera's lens
mount with the red marking on the Jens barrel
aligned with the red marking on the camera
body. Twist the lens clockwise until it clicks
into place.
Shutter cocking
When the lens is attached to the camera, the
shutter mechanism is automatically cocked
each time the film is advanced. If the lens has
been off the camera and the shutter inadver-
tently released, the shutter mechanism must
be cocked before the lens is attached to the
camera's lens mount.
The shutter in a detached, untensioned lens is
cocked with a coin inserted into the slot (A)
on the cocking shaft. Rotate the shaft c/ock-
wise slightly more than one turn until it stops.
(Do not use a screwdriver or any other sharp
object which could slip and damage the rear
lens element.) When the lens is cocked, the
slot (A) on the shaft will point to the red index
dot (B). See Fig. 20.
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