Interchangeable Focusing Screens - Canon AE-1 PROGRAM Instructions Manual

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.