When Autofocus Fails (Manual Focusing)
48
Manual Focusing
1
Set the lens focus mode switch to
MF (or M on older lenses).
• The AF mode indicator on the LCD
panel turns off.
2
Focus by turning the lens
focusing ring until the subject is
in focus in the viewfinder.
• Select the desired focusing point and press the shutter button halfway while
manual focusing. When focus is achieved, the selected focusing point will flash
and the in-focus indicator will light.
• When the focusing point is selected automatically and the center focusing point
achieves focus, it will flash and the in-focus indicator will light.
• With USM (Ultrasonic Motor) lenses (except those not having a distance
scale), you can use the focusing ring to fine focus after focus is achieved in the
One-Shot AF mode (full-time manual focusing).
For USM lenses with an electronic focusing ring (such as the EF 200mm
f/1.8L), Custom Function C.Fn-7 can require the lens focus mode switch to be
set to
MF
(or
M
) before manual focus is enabled. (
→
p.102)
C.Fn
SEC.03 P033-048 (E) 28-01-2003 16:04 Pagina 48