Hasselblad 503CW Instruction Manual page 27

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The Hasselblad Meter Prism Viewfinders measure
the light level on the focusing screen. They are
calibrated at the factory to give an accurate read-
ing with one particular type of screen. If that
focusing screen is replaced with another type
which gives a different light level under the same
ambient conditions, the meter has to be adjusted
to compensate for the difference.
The PME and PME3 / PME5 / PME51 meter
viewfinders are basically the same design but are
differently adjusted at the factory.
The two viewfinder types are distinguished by the
lettering PME3, PME5 or PME5l respectively on
; 3the rear of the viewfinder body above the eye-
piece. The PME has no such inscription.
On page 24 yol will find instructions on how to
adjust the PME and PME3/PME5/PME51 Meter
Prism Viewfinders to compensate for the light
level differences with the different focusing
screens.
The PME 90 Meter Prism Viewfinder requires no
adjustment when an Acute-Matte or Acute-Matte
D focusing screen is fitted.
Please refer to your viewfinder's operating
instructions for further information about other
functions.
TheViewfinderSystem : 23