290 THE HASSELBLAD MANUAL
a lithium CR-2 (see Figure 15-15). They have somewhat different magnifi cations and diopter
correction options as shown in Table 7-1. The PME 90 has an illumination window for the view-
fi nder display, and the PME 45 does not. When the PME 45 is turned on, the display is illumi-
nated via LEDs powered by the battery. The PME 45 can be used with the instant fi lm magazine
Figure 15-12 Selecting the metering mode. On the PME 90 and PME 45 meter prism fi nders, you
set the desired metering mode by pressing the metering mode button marked Pr (1) and then
pressing the UP or DOWN adjustment button until the desired mode symbol, spot meter (2),
center area metering (3), incident metering (4), appears on the viewfi nder display. The ISO
button sets the fi lm sensitivity. The Fmax button is for setting the maximum aperture of the
lens on the camera.
Figure 15-13 The PME 90 operating controls: (1) locking clip, (2) indication mark, (3) eyepiece
diopter adjustment, (4) removable rubber eyecup, (5) eyepiece diopter lock, (6) battery
compartment cover, (7) ISO setting button, (8) MAX aperture setting button, (9) metering
mode symbols, (10) metering mode selector, (11) upper and lower adjustment buttons, (12)
metering button, (13) display illumination button, (14) display illumination symbol, (15)
display illumination window, (16) incident metering dome, (17) accessory shoe, (18) view-
fi nder type emblem, (19) cover for service use, (20) magazine catch operating slide, (21) view-
fi nder retaining plate, (22) prism, and (23) protective cover.
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