Hasselblad 500C/M Instruction Manual page 14

12
Figs 21—22
CAMERA BODY (Figs. 21—23)
Focusing screen
The focusing screen (C, Figs. 21—22) has 4
inscribed lines to facilitate horizontal and ver-
tical alignment. Masks can be placed on top
of the focusing screen when formats other
than 2 1/4 x 2 1/4 are used.
Changing the focusing screen
Remove the magazine and focusing hood.
Slide the screen retaining catches (B) into the
retracted position. Cup your hand over the
focusing, screen and turn the camera upside
down. The focusing screen should then drop
into your hand. If it fails to do so, remove the
camera lens and gently tap the underside of
the screen from inside the camera body.
Note. The mirror must be in the down posi-
tion. Insert the new focusing screen into the
camera body. Make sure it rests firmly on all
four screen supports (A). The retaining
catches (B) automatically lock the screen in
place as soon as a viewfinder is attached.
Camera body rear plate (Fig. 23)
The auxiliary shutter (E), which consists of
two vertically moving blinds, can be seen
through the rear opening of the camera body.
The gear wheel (D) transfers the force applied
to the film advance knob or crank to the
magazine mechanism.
The pin (F) actuates the film advance indica-
tor and automatically blocks the shutter re-
lease after the last frame is exposed.
Make sure (D) and (F) are kept clean and free
from dirt and dust.
Exposure (Fig. 24)
Exposure takes place when the shutter release
(14) is depressed.