Mamiya C330 Accessories Manual page 4

Focusing Screen
The following types
of focusing screen are
available, replaceable
according to the pho-
tographing purpose.
A metal frame is pro-
vided for all focusing
screens.
Matted entire surface ; Fresnel lens
(except center circular portion);
with exposure factor scale.
Matted entire surface (except cen-
ter circular portion); with expo-
sure factor scale.
For general photography
Suitable for any lens
Focusing precision by the split
prism is sensitive compared with
the No. 2 Rangefinder Spot 4'