Nikon SB-22 Instruction Manual page 15

3.
Lightly press camera shutter release
button.
When ready-light comes on but ambient light is insuffi-
cient for autofocus operation, AF illuminator fires to
start autofocus operation.
If ambient light is sufficient, the AF illuminator does not
fire .
0
,
"
"
4
Confirm whether the green in· focus
• indicator LED lights up, then fully depress
the shutter release button.
If focus-nat-possible indicator LED
( x ) remains lit
when using the Nikon F-501/N2020, or if focus indi-
cator LED ( . ) blinks with Nikon F-401/N4004, auto-
focus flash photography is impossible. Focus manually
on the clear matte field.
15