26. Interchangeable Focusing
Screens
You can change the focusing screen
in
your
AE
- 1 PROGRAM according
to
your specific
focusing needs.
Canon
offers
eight
different
types
of
focusing screens
for
the AE-1 PRO-
GRAM
• Never change the screen
with
your fingers. A
special tool is provided
with
each accessory
focusing screen
to
facilitate screen replace-
ment.
70
A
B
8
New
Split/Microprism
Standard
with
the AE-1 PROGRAM.
A. Microprism
Matte
/Fresnel field
with
microprism range-
finder
spot
in
the center
of
the screen.
Especially suited
for
general photography
when using
an
aperture
of
f/5
.6
or
larger.
B.
New
Split
Matte/Fresnel field
with
split-image range-
finder spot in the center
of
screen. The lens is
in
focus
when the
bottom
half is even
with
the
upper
half. Suited
for
general photography
since,
unlike
former
focusing screens, rarely
does one-half
of
the rangefinder darken, even
when using
small maximum aperture lenses.
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